Great, top athlete (4,6)

I believe the answer is:

high jumper

'athlete' is the definition.
(I've seen this before)

'great top' is the wordplay.
'great' becomes 'high' (similar in meaning).
'top' becomes 'jumper' (I've seen this before).
'high'+'jumper'='HIGH JUMPER'

(Another definition for high jumper that I've seen is " athlete".)

I've seen this clue in The Times.

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