A loose relative (6)

I believe the answer is:

auntie

'relative' is the definition.
(I know that auntie is a type of kinswoman)

'a loose' is the wordplay.
'loose' becomes 'untie' (I've seen this before).
'a'+'untie'='AUNTIE'

(Other definitions for auntie that I've seen before include "BBC; relative (colloq,)" , "Family relative" , "Relative (familiar)" , "Unite a strange family member" , "The BBC (coll.)" .)

I've seen this clue in The Globe and Mail and The Sunday Times.

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