Retro camera tucked into quite damp beachwear (9)

I believe the answer is:

monokinis

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'quite damp beachwear' is the definition.
I don't know anything about this answer so I cannot judge whether it can be defined by this definition.

'retro camera tucked into' is the wordplay.
I cannot quite see how this works, but
'into' could be 'in' and 'in' is found in the answer.
This may be the basis of the clue (or it may be nonsense).

Can you help me to learn more?

I've seen this clue in the Sydney Morning Herald.

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