Perturbed to find it's not yet been paid? (9)
I believe the answer is:
unsettled
'perturbed' is the definition.
(thesaurus)
'it's not yet been paid?' is the wordplay.
I cannot quite see how this works, but
'not' could be 'un' (prefix meaning 'not') and 'un' is found within the answer.
'been' could be 'led' (leading is a kind of being) and 'led' is found within the answer.
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is found in the answer.
The remaining letters 'set' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'to find' is the link.
Can you help me to learn more?
(Other definitions for unsettled that I've seen before include "a forecast of "showery"?" , "Liable to change or upset" , "Disturbed" , "outstanding" , "(Of weather) lacking stability" .)