Crossword Genius

Would church official drive round a red-back? (9)

Ross

I believe the answer is:

moderator

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

'would church official' is the definition.
I can't tell whether this defines the answer.

'drive round a red-back?' is the wordplay.
'drive' becomes 'motor' (synonyms).
'round' means one lot of letters goes inside another.
'back?' is a reversal indicator (I've seen 'back' mean this).
'a'+'red'='ared'
'ared' backwards is 'dera'.
'motor' going around 'dera' is 'MODERATOR'.

Can you help me to learn more?

(Other definitions for moderator that I've seen before include "Presiding officer" , "Overseer of exam" , "Presbyterian president" , "member of exam team" , "who'll combat trolls etc" .)

I've seen this clue in the Sydney Morning Herald.
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