Foreman makes group-leader rage (6)
I believe the answer is:
ganger
'foreman' is the definition.
(ganger is a kind of foreman)
'group-leader rage' is the wordplay.
'leader' suggests taking the first letters.
'rage' becomes 'anger' (I've seen this before).
The initial letter of 'group' is 'g'.
'g'+'anger'='GANGER'
'makes' is the link.
(Other definitions for ganger that I've seen before include "Foreman of a group of labourers" , "Foreman in charge of grange" , "Foreman of a work group" .)