Cries out "yes", for about £50 (5)
I believe the answer is:
yells
'cries out' is the definition.
(I've seen this before)
'yes for about ps50' is the wordplay.
I cannot really see how this works, but
'yes' could be 'y' and 'y' is located in the answer.
The remaining letters 'ells' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for yells that I've seen before include "Screams" , "Cries out" , "Shouts loudly" .)