Make-up friends brought around (4)
I believe the answer is:
slap
'make-up' is the definition.
(informal term for make-up)
'friends brought around' is the wordplay.
'friends' becomes 'pals' (pal is a kind of friend).
'brought around' says the letters should be written in reverse.
'pals' back-to-front is 'SLAP'.
(Other definitions for slap that I've seen before include "Hit with a flat hand" , "Strike with the palm" , "Strike (in the face)" , "A blow among pals" , "Sharp smack" .)