Note left with a husband (3)
I believe the answer is:
lah
'note' is the definition.
(I've seen this before)
'left with a husband' is the wordplay.
'left' becomes 'L' (common abbreviation).
'with' is a charade indicator (letters next to each other).
'husband' becomes 'h'.
'l'+'a'+'h'='LAH'
(Other definitions for lah that I've seen before include "It comes between soh and te" , "Sixth tonic sol-fa note" , "Sixth note of major musical scale" .)