Crossword Genius

Tramp's son developed into an athlete (9)

Ross

I believe the answer is:

sportsman

'an athlete' is the definition.
(sportsman is a kind of athlete)

'tramp's son developed' is the wordplay.
'developed' indicates anagramming the letters.
'tramps'+'son'='trampsson'
'trampsson' with letters rearranged gives 'SPORTSMAN'.

'into' is the link.

(Other definitions for sportsman that I've seen before include "Rower perhaps" , "Game fellow" , "player" , "Eg, athlete" , "Male athlete" .)

I've seen this clue in The Mirror.
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