Have the idea the price is a quid (4)
I believe the answer is:
feel
'have' is the definition.
(thesaurus)
'idea the price is a quid' is the wordplay.
I cannot quite see how this works, but
'price' could be 'fee' (I've seen this before) and 'fee' is located in the answer.
A single letter 'l' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'the' acts as a link.
Can you help me to learn more?
(Other definitions for feel that I've seen before include "Have a belief; touch" , "Perceive, sense" , "16A [JUDGE]" , "Instinct" , "Perceive by touch" .)