Pugnacious sailor has daughter with amazed expression (3-4)

I believe the answer is:

pop-eyed

'with amazed expression' is the definition.
(with eyes popping out)

'pugnacious sailor has daughter' is the wordplay.
'pugnacious sailor' becomes 'Popeye' (US comic strip character).
'has' means one lot of letters go next to another.
'daughter' becomes 'd' (genealogical abbreviation).
'popeye'+'d'='POP-EYED'

(Another definition for pop-eyed that I've seen is " agog".)

I've seen this clue in The Times.

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