Applies light touches and prints (4)
I believe the answer is:
dabs
I believe this is a double definition.
'applies light touches' is the first definition.
(I've seen this before)
'prints' is the second definition.
(I've seen this before)
'and' is the link.
(Other definitions for dabs that I've seen before include "incriminating evidence, perhaps" , "Fingerprints (informal)" , "they give evidence to police" , "prints" , "Fingerprints (slang)" .)