Watched them pull over amidst rush (8)
I believe the answer is:
regarded
'watched' is the definition.
(I've seen this before)
'pull over amidst rush' is the wordplay.
'pull' becomes 'drag' (drag is a kind of pull).
'over' says the letters should be written in reverse.
'amidst' indicates putting letters inside (amidst can mean between or within).
'rush' becomes 'reed' (plants found by water).
'drag' reversed gives 'gard'.
'gard' inserted within 'reed' is 'REGARDED'.
'them' acts as a link.
I am not very happy about this link. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for regarded that I've seen before include "Looked at and esteemed" , "Watched" , "Considered or deemed to be" .)