Male cat's turn to cry (5)
I believe the answer is:
motto
'cry' is the definition.
(I've seen this before)
'male cat's turn to' is the wordplay.
'male cat' becomes 'tom' (a male cat is called a tom).
'turn' shows that the letters should be reversed in order.
'tom' reversed gives 'mot'.
'mot'+'to'='MOTTO'
(Other definitions for motto that I've seen before include "cry" , "Phrase on, eg, family coat of arms" , "Saying; slogan" , "Short sentence adopted as rule of conduct" , "Phrase to express character" .)