Wipe lightly (3)
I believe the answer is:
dab
'wipe lightly' is the definition.
(I've seen this in another clue)
This is the entire clue.
(Other definitions for dab that I've seen before include "Lightly press" , "Expert; light touch" , "Small North Atlantic flatfish" , "A small fish - bad one" , "Bad sort of small fish" .)