Jaunty maestro can't accommodate divorced wife? (4)
I believe the answer is:
pert
'jaunty' is the definition.
(thesaurus)
'maestro can't accommodate divorced wife?' is the wordplay.
'maestro' becomes 'expert'.
'can't accommodate' indicates named letters should be taken away.
'divorced wife?' becomes 'ex'.
'expert' with 'ex' removed is 'PERT'.
(Other definitions for pert that I've seen before include "Impudent, cheeky" , "Persian expert" , "Saucy, lively" , "Saucy and chipper" , "Slightly insolent" .)