The Collaborative International Dictionary of English v.0.48:

Clothe \Clothe\ (kl[=o][th]), v. t. [imp. & p. p. Clothed
   (kl[=o][th]d) or Clad (kl[a^]d); p. pr. & vb. n.
   Clothing.] [OE. clathen, clothen, clethen, AS.
   cl[=a][eth]ian, cl[=ae][eth]an. See Cloth.]
   1. To put garments on; to cover with clothing; to dress.
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            Go with me, to clothe you as becomes you. --Shak.
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   2. To provide with clothes; as, to feed and clothe a family;
      to clothe one's self extravagantly.
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            Drowsiness shall clothe a man with rags. --Prov.
                                                  xxiii. 21.
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            The naked every day he clad,
            When he put on his clothes.           --Goldsmith.
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   3. Fig.: To cover or invest, as with a garment; as, to clothe
      one with authority or power.
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            Language in which they can clothe their thoughts.
                                                  --Watts.
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            His sides are clothed with waving wood. --J. Dyer.
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            Thus Belial, with with words clothed in reason's
            garb.                                 --Milton.
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The Collaborative International Dictionary of English v.0.48:

Clad \Clad\ (kl[a^]d), v. t.
   To clothe. [Obs.] --Holland.
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The Collaborative International Dictionary of English v.0.48:

Clad \Clad\,
   imp. & p. p. of Clothe.
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WordNet (r) 3.0 (2006):

clad
    adj 1: wearing or provided with clothing; sometimes used in
           combination; "clothed and in his right mind"- Bible;
           "proud of her well-clothed family"; "nurses clad in
           white"; "white-clad nurses" [syn: clothed, clad]
           [ant: unclothed]
    2: having an outer covering especially of thin metal; "steel-
       clad"; "armor-clad"

Moby Thesaurus II by Grady Ward, 1.0:

48 Moby Thesaurus words for "clad":
   apparel, appareled, array, arrayed, attire, attired, bedecked,
   breeched, capped, chausse, cloaked, clothed, coifed, costumed,
   decked, dight, disguised, dress, dressed, enclothe, endued, face,
   garb, garbed, garment, garmented, gowned, habilimented, habited,
   hooded, invested, liveried, mantled, pantalooned, raiment,
   raimented, rigged out, robed, shod, shoed, side, skin, tired,
   togged, tricked out, trousered, vested, vestmented