Last to seek dispute, posh girl's around for basic industry (7)
I believe the answer is:
legwork
'basic industry' is the definition.
(I've seen this before)
'last to seek dispute posh girl's around' is the wordplay.
'last to' suggests the final letters.
'dispute' becomes 'row' (row is a kind of dispute).
'posh girl' becomes 'gel' (I've seen this in other clues).
'around' says the letters should be written backwards.
The last letter of 'seek' is 'k'.
'k'+'row'+'gel'='krowgel'
'krowgel' reversed gives 'LEGWORK'.
'for' is the link.
(Other definitions for legwork that I've seen before include "Tasks that involve much travelling" , "Hard slog" , "Jobs done out of the office" , "Hard graft" , "research?" .)