Rush impressed by Aldridge's finish (8)
I believe the answer is:
stampede
'rush' is the definition.
(I've seen this before)
'impressed by aldridge's finish' is the wordplay.
'impressed' becomes 'stamped' (stamping is a kind of impressing).
'by' says to put letters next to each other.
'finish' suggests the final letters.
The last letter of 'aldridge' is 'e'.
'stamped'+'e'='STAMPEDE'
(Other definitions for stampede that I've seen before include "Uncontrolled rush" , "Run in panic" , "Panicked rush (of cattle)" , "Wild headlong rush" , "uncontrolled flight" .)