Price of tobacco? (4)
I believe the answer is:
This clue might be a double definition.
'price' is the first definition.
Although both the answer and definition are singular nouns, I can't see how they can define each other.
'tobacco?' is the second definition.
(I've seen this before)
'of' acts as a link.
Can you help me to learn more?
(Other definitions for quid that I've seen before include "Pound - lump of chewing tobacco", "Bit of greens", "100p (slang)", "Pound (informal)", "Pound (colloq.)".)