Slump sees daughter, impecunious, coming back (5)
I believe the answer is:
droop
'slump' is the definition.
(thesaurus)
'daughter impecunious coming back' is the wordplay.
'daughter' becomes 'd'.
'impecunious' becomes 'poor' ('poor' can be similar in meaning to 'impecunious').
'coming back' says the letters should be written in reverse.
'poor' backwards is 'roop'.
'd'+'roop'='DROOP'
'sees' is the link.
(Other definitions for droop that I've seen before include "sink" , "Sag, wilt" , "Hang downwards, lose strength or spirit" , "Grow faint" , "Sag downwards" .)