Welsh girl appears topless for Scotsman (3)

I believe the answer is:

ian

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'scotsman' is the definition.
(common Scottish name)

I cannot understand how the rest of the clue works.

(Other definitions for ian that I've seen before include "Scottish John" , "Male" , "- - Wallace (baritone)" , "Scotsman?" , "The familiar Mr Paisley" .)

I've seen this clue in The Sun.

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