Unattached composer has part sent back (8)

I believe the answer is:

bachelor

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'unattached composer has part sent back' is the definition.
I can't judge whether this defines the answer.

'composer has part sent back' is the wordplay.
'composer' becomes 'Bach' (Johann Sebastian Bach).
'has' says to put letters next to each other.
'part' becomes 'role' (eg a theatrical role).
'sent back' is a reversal indicator.
'role' backwards is 'elor'.
'bach'+'elor'='BACHELOR'

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(Other definitions for bachelor that I've seen before include "He's not married" , "Non-married male" , "leading man at start of Wedding Cantata" , "Single person" , "Unmarried person" .)

I've seen this clue in The Irish Times.

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