Women supply weapons and cordial (4)
I believe the answer is:
warm
'cordial' is the definition.
(similar in meaning)
'women supply weapons' is the wordplay.
'women' becomes 'w' (standard abbreviation).
'supply weapons' becomes 'arm' (to arm someone is to supply them with weapons).
'w'+'arm'='WARM'
'and' is the link.
(Other definitions for warm that I've seen before include "Having moderate heat" , "Apply heat to" , "excited" , "not cool?" , "Heated; enthusiastic" .)