Cutlery support for mature anthropoid (10)

I believe the answer is:

silverback

'mature anthropoid' is the definition.
(male mature gorilla)

'cutlery support' is the wordplay.
'cutlery' becomes 'silver' (bits of silverware).
'support' becomes 'back' (to back is to support or endorse).
'silver'+'back'='SILVERBACK'

'for' is the link.

(Another definition for silverback that I've seen is " gorilla?".)

I've seen this clue in The Guardian.

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