Moral type keeping a detective back -- what's the cost? (5,3)
I believe the answer is:
price tag
'the cost?' is the definition.
(I've seen this in another clue)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for price tag that I've seen before include "Indication of cost" , "damage shower" , "Label indicating cost" , "Shop goods label" , "Amount to be paid" .)