Subdue, making a firm point (3)
I believe the answer is:
cow
'subdue' is the definition.
(as in cowing someone into submission)
'a firm point' is the wordplay.
'a firm' becomes 'co' (abbreviation for company).
'point' becomes 'w' (West).
'co'+'w'='COW'
'making' acts as a link.
(Other definitions for cow that I've seen before include "Subdue the spirit" , "Bovine female" , "Source of milk" , "Subdue with threats or force" , "Ruminant" .)