Stretch a point, to some extent, for one of the guys (4)
I believe the answer is:
chap
'one of the guys' is the definition.
(a chap is a guy or man)
'stretch a point to some extent' is the wordplay.
'to some extent' indicates the answer is hidden within the clue.
'CHAP' is hidden in the letters of 'stretch a point'.
'for' is the link.
(Other definitions for chap that I've seen before include "Raw, cracked patch on skin" , "Split in skin" , "Fellow < makes > crack" , "Fish" , "Become raw from cold - fellow" .)