Lost balance from West End rent (7)
I believe the answer is:
tripped
'lost balance' is the definition.
'west end rent' is the wordplay.
'west end' becomes 't' (I am not sure about this - if you are sure you should believe this answer much more).
'rent' becomes 'ripped' (synonyms).
't'+'ripped'='TRIPPED'
'from' acts as a link.
(Other definitions for tripped that I've seen before include "Missed a step, stumbled" , "Came a cropper" , "Took acid" .)