1) Acknowledges performers 2) Applauds 3) Applauds many parts of a race 4) Audible approval 5) Cleans erasers 6) Gives applause 7) Gives audible approval 8) Gives one a hand 9) Gives someone a hand 10) Gives the team a hand 11) Greets the good guy 12) Hand-made percussion 13) Handily shows approval Found on https://www.crosswordclues.com/clue/claps