Churchmen bow twice, awfully posh (11)

I believe the answer is:

archbishops

'churchmen' is the definition.

'bow twice awfully posh' is the wordplay.
'bow' becomes 'arch' (I've seen this before).
'twice' becomes 'bis' (I've seen this in other clues).
'awfully' indicates an anagram.
'posh' with letters rearranged gives 'hops'.
'arch'+'bis'+'hops'='ARCHBISHOPS'

I've seen this clue in The Times.

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