SPECIAL TOPIC: "CLAP YOUR HANDS"

James M. Freeeman, Manners and Customs of the Bible, notes five different meanings to clapping of the hands (p. 305).

sign of contempt, Job 27:33; Lam. 2:15
sign of anger, Num. 24:10; Ezek. 21:14,17; 22:13
sign of sorrow, Ezek. 6:11
sign of triumph, Ezek. 25:6; Nah. 3:19
sign of a pledge, Gen. 14:22 (if "lift the hand" is related to "clap the hands"); Prov. 11:21 and possibly Ezek. 21:14,17

For a good brief discussion see IVP Biblical Background Commentary (OT), p. 694