Dissident wanting official employment upset relatives (9)
I believe the answer is:
refusenik
'dissident' is the definition.
(I've seen this before)
'official employment upset relatives' is the wordplay.
'official' becomes 'ref' (match official in football, say).
'employment' becomes 'use' ('use' can be a synonym of 'employment').
'upset' says the letters should be written backwards.
'relatives' becomes 'kin' (I've seen this before).
'kin' back-to-front is 'nik'.
'ref'+'use'+'nik'='REFUSENIK'
'wanting' acts as a link.
(Other definitions for refusenik that I've seen before include "who refuses to cooperate" , "Protester" , "Soviet dissident" .)