Dirty number in a movie (5)
I believe the answer is:
dozen
This clue might be a double definition.
'dirty number' is the first definition.
(I've seen this in another clue)
'movie' is the second definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'in a' acts as a link.
Can you help me to learn more?
(Other definitions for dozen that I've seen before include "Set of 12" , "See 4" , "Twelfth of a gross" , "One less than 13" , "A small number" .)