Extract exposed mollusc first (6,3)

I believe the answer is:

winkle out

'extract' is the definition.
(thesaurus)

'exposed mollusc first' is the wordplay.
'exposed' becomes 'out' (out on display).
'mollusc' becomes 'winkle' (winkle is a kind of mollusc).
'first' says to put letters next to each other.
'out' put after 'winkle' is 'WINKLE OUT'.

(Another definition for winkle out that I've seen is " Extract with some difficulty".)

I've seen this clue in The Daily Mail.

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