The Collaborative International Dictionary of English v.0.48:

Yielding \Yield"ing\, a.
   Inclined to give way, or comply; flexible; compliant;
   accommodating; as, a yielding temper.
   [1913 Webster]

   Yielding and paying (Law), the initial words of that clause
      in leases in which the rent to be paid by the lessee is
      mentioned and reserved. --Burrill.
      [1913 Webster]

   Syn: Obsequious; attentive.

   Usage: Yielding, Obsequious, Attentive. In many cases a
          man may be attentive or yielding in a high degree
          without any sacrifice of his dignity; but he who is
          obsequious seeks to gain favor by excessive and mean
          compliances for some selfish end.
          [1913 Webster] -- Yield"ing*ly, adv. --
          Yield"ing*ness, n.
          [1913 Webster]

Bouvier's Law Dictionary, Revised 6th Ed (1856):

YIELDING AND PAYING, contracts. These words, when used in a lease,
constitute a covenant on the part of the lessee to pay the rent; Platt on
Coven. 50; 3 Penna. Rep. 464; 1 Sid. 447, pl. 9; 2 Lev. 206; 3 T. R. 402; 1
Barn. & Cres. 416; S. C. 2 Dow. & Ry. 670; but whether it be an express
covenant or not, seems not to be settled. Sty. 387, 406, 451; Sid. 240, 266;
2 Lev. 206; S. C., T. Jones, 102 3 T. R. 402.
     2. In Pennsylvania, it has been decided to be a covenant running with
the land. 3 Penna. Reports, 464. Vide 1 Saund. 233, n. 1; 9 Verm. R. 191.