Clue: Cake and ale, eating doughnut for reward (7,5)
Answer: BROWNIE POINT
Explanation: Definition: reward

BROWNIE ("cake") + PINT ("ale") eating O (doughnut)
 

 
*A British term for an imaginary social currency gained for doing something good for someone. In the case of a married man, these are definitely imaginary as no matter how many you earn, they can immediately be wiped out by one careless remark!)