Parent of a red admiral (3)

I believe the answer is:

dad

'parent' is the definition.
(dad can informally mean father)

'of a red admiral' is the wordplay.
'of' indicates the answer is hidden within the clue.
'DAD' is hidden in the letters of 'red admiral'.

(Other definitions for dad that I've seen before include "Old man" , "Father, in short" , "Papa" , "Pop, pater" , "Popular and informal father" .)

I've seen this clue in the Evening Standard.

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