Former spouse due to arrange display (5)
I believe the answer is:
exude
'display' is the definition.
(I've seen this before)
'former spouse due to arrange' is the wordplay.
'former spouse' becomes 'ex' (an ex-spouse).
'to arrange' indicates anagramming the letters.
'due' with letters rearranged gives 'ude'.
'ex'+'ude'='EXUDE'
(Other definitions for exude that I've seen before include "Release" , "Show, say, confidence - ooze out" , "Discharge (something) slowly" , "Slowly give out (smell)" , "Radiate" .)