Champion lacking in height succeeded in love (4)

I believe the answer is:

eros

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

I can't explain the rest of the clue.

(Other definitions for eros that I've seen before include "Orbiter" , "Cupid's Greek alternative" , "Love-god's statue in Piccadilly" , "Deity" , "Greek god of love - see statue in Piccadilly" .)

I've seen this clue in The Telegraph.

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