The Collaborative International Dictionary of English v.0.48:

Mantle \Man"tle\, v. t. [imp. & p. p. Mantled; p. pr. & vb. n.
   Mantling.]
   To cover or envelop, as with a mantle; to cloak; to hide; to
   disguise. --Shak.
   [1913 Webster]

The Collaborative International Dictionary of English v.0.48:

mantled \man"tled\ adj.
   Covered with or as if with clothes or a wrap or cloak.

   Syn: cloaked, clothed, draped, wrapped.
        [WordNet 1.5]

WordNet (r) 3.0 (2006):

mantled
    adj 1: covered with or as if with clothes or a wrap or cloak;
           "leaf-clothed trees"; "fog-cloaked meadows"; "a beam
           draped with cobwebs"; "cloud-wrapped peaks" [syn:
           cloaked, clothed, draped, mantled, wrapped]