Two Greek characters initially pursued model (3-2)

I believe the answer is:

pin-up

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'model' is the definition.
(pin-up can mean a model)

I cannot understand how the remainder of the clue works.

(Other definitions for pin-up that I've seen before include "Photographer's model" , "(Picture of) sexually attractive person" , "picture of heart-throb?" , "Attractive celebrity" , "Sexy model" .)

I've seen this clue in The Sun.

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