Hot member close to tears and ready to fight (2,4)
I believe the answer is:
in arms
'ready to fight' is the definition.
I know nothing about this answer so I can't tell whether this works.
'hot member close to tears' is the wordplay.
'hot' becomes 'in' (both can mean fashionable).
'member' becomes 'arm' (arm is a kind of member).
'close to' suggests the final letters (the 'close' to the word).
The final letter of 'tears' is 's'.
'in'+'arm'+'s'='IN ARMS'
'and' acts as a link.
Can you help me to learn more?
(Another definition for in arms that I've seen is " Prepared to fight".)