Kissers (4)
I believe the answer is:
lips
'kissers' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for lips that I've seen before include "Brims, rims" , "Edges of the mouth" , "Folds of tissue round the mouth" , "Fleshy folds on the face" , "Top edges of vessels" .)