Learnt to play the horn? (6)

I believe the answer is:

antler

'horn?' is the definition.
(antler is a kind of horn)

'learnt to play' is the wordplay.
'to play' indicates an anagram.
'learnt' is an anagram of 'ANTLER'.

'the' is the link.

(Other definitions for antler that I've seen before include "Deer-horn" , "Stag horn" , "Branch" , "Deer's branching horn" , "Animal's extension" .)

I've seen this clue in the Evening Standard, The Mirror, The Sun and The Daily Express.

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