Surely she wouldn't really cheat on a bet? (7)
I believe the answer is:
dowager
'surely she wouldn't really' is the definition.
I can't judge whether this defines the answer.
'cheat on a bet?' is the wordplay.
'cheat' becomes 'do'.
'on' is a charade indicator (letters next to each other) (in a down clue, letters appear on others).
'a bet?' becomes 'wager' ('wager' can be a synonym of 'bet').
'do'+'wager'='DOWAGER'
Can you help me to learn more?
(Other definitions for dowager that I've seen before include "Nobleman's widow" , "Widow, imposing elderly woman" , "Woman who holds title from dead husband" , "woman of status" , "Dignified (or wealthy) elderly woman" .)
