Crossword Genius

Make unholy sexy man stand (9)

Ross

I believe the answer is:

dishallow

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

'make unholy' is the definition.
I can't tell whether this definition defines the answer.

'sexy man stand' is the wordplay.
'sexy man' becomes 'dish' (dish can mean an attractive person).
'stand' becomes 'allow' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'dish'+'allow'='DISHALLOW'

Can you help me to learn more?

I've seen this clue in The Independent.
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