Crossword Genius

Go off and become a cynic perhaps (4,4)

Ross

I believe the answer is:

turn sour

I'm a little stuck... Click here to teach me more about this clue!

'become a cynic perhaps' is the definition.
I know nothing about this answer so I cannot tell whether this works.

'go off' is the wordplay.
'go' becomes 'turn' (as in one's go or turn in a game).
'off' becomes 'sour' (something off might have a sour taste).
'turn'+'sour'='TURN SOUR'

'and' acts as a link.

Can you help me to learn more?

(Another definition for turn sour that I've seen is " Become unfavourable".)

I've seen this clue in The Globe and Mail.
Want a hint initially instead of a full solution? Install my app