Seabird and its outsize quarry (6)

I believe the answer is:

osprey

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'seabird' is the definition.
(I've seen this in another clue)

'outsize quarry' is the wordplay.
'outsize' becomes 'os'.
'quarry' becomes 'prey' (synonyms).
'os'+'prey'='OSPREY'

'and its' acts as a link.
This may not be correct. Some or all of it may belong to another bit of the clue.

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(Other definitions for osprey that I've seen before include "Fish-eating 15 ac" , "Piscivorous creature" , "predatory bird" , "Large bird that preys on fish in inland waters" , "I grab fish" .)

I've seen this clue in The Irish News.

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