WordNet sense 1 (a short light metallic sound):

clink

WordNet sense 2 (a stop consonant made by the suction of air into the mouth (as in Bantu)):

suction stop

WordNet sense 3 (a hinged catch that fits into a notch of a ratchet to move a wheel forward or prevent it from moving backward):

dog, pawl, detent

WordNet sense 4 (click repeatedly or uncontrollably):

chatter

WordNet sense 5 (make a clicking or ticking sound):

tick

WordNet sense 6 (move or strike with a noise):

snap

WordNet sense 7 (cause to make a snapping sound):

flick

WordNet sense 8 (make a clucking sounds, characteristic of hens):

clack, cluck

WordNet sense 9 (become clear or enter one's consciousness or emotions):

dawn, penetrate, get through, get across, come home, fall into place, sink in

WordNet sense 10 (depression of a button on a computer mouse):

mouse click