Turns gun around, indicating guitar left in an unplayable condition (8)

I believe the answer is:

unstrung

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'guitar left in an unplayable condition' is the definition.
I can't judge whether this definition defines the answer.

'turns gun around' is the wordplay.
'around' indicates anagramming the letters.
'turns'+'gun'='turnsgun'
'turnsgun' anagrammed gives 'UNSTRUNG'.

'indicating' acts as a link.

Can you help me to learn more?

(Other definitions for unstrung that I've seen before include "(Of pearls or beads) yet to be linked together" , "Emotionally distressed" .)

I've seen this clue in The Irish Times.

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