Letting go of handgun in convertible (9)

I believe the answer is:

unhanding

'letting go of' is the definition.
(unhanding is a kind of letting go of)

'handgun in convertible' is the wordplay.
'convertible' is an anagram indicator.
'handgun'+'in'='handgunin'
'handgunin' anagrammed gives 'UNHANDING'.

I've seen this clue in The Daily Express.

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