Crossword Genius

Trifler late leaving railway worker (6)

Ross

I believe the answer is:

player

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'worker' is the definition.
The definition and answer can be both people as well as being singular nouns.
Maybe they are linked in a way I don't understand?

I don't understand how the remainder of the clue works.

Can you help me to learn more?

(Other definitions for player that I've seen before include "powerful participant" , "Actor - footballer?" , "film, on piano" , "Gambler" , "Sportsman - instrumentalist" .)

I've seen this clue in The Independent.
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