Would he give fifty quid for a way out? (5)
I believe the answer is:
wally
'would he' is the definition.
The definition suggests a singular noun which matches the answer.
'give fifty quid for a way out?' is the wordplay.
'give' says to put letters next to each other.
'fifty' becomes 'l' (Roman numeral).
'quid for' becomes 'l' (I can't justify this - if you can you should give a lot more credence to this answer).
'out?' indicates putting letters inside.
'l' put next to 'l' is 'll'.
'll' going into 'way' is 'WALLY'.
Can you help me to learn more?
(Other definitions for wally that I've seen before include "Idiot (slang)" , "A fool (sl.)" , "Complete idiot" .)