Have no money left in bank account for trip (4,4,7)
I believe the answer is:
lose ones balance
'trip' is the definition.
'have no money left in bank account' is the wordplay.
I cannot quite understand how this works, but
'no' could be 'o' (resembles 0 - 'no' can mean 'zero') and 'o' is present in the answer.
'money' could be 'l' (L can mean 'pounds') and 'l' is present in the answer.
'left' could be 'al' (I've seen this in other clues) and 'al' is located in the answer.
This explanation may well be incorrect...
'for' is the link.
(Other definitions for lose ones balance that I've seen before include "Go into debt, presumably" , "go into the red" , "Falter" , "about to collapse?" .)