Support a method offering retreat (4,4)

I believe the answer is:

back away

'retreat' is the definition.
(synonyms)

'support a method' is the wordplay.
'support' becomes 'back' (to back is to support or endorse).
'method' becomes 'way' (way of doing something).
'back'+'a'+'way'='BACK AWAY'

'offering' is the link.

I've seen this clue in The Guardian.

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