Stick to this type of film? (5)
I believe the answer is:
cling
'stick to' is the definition.
(I've seen this before)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for cling that I've seen before include "Keep hold" , "Stick close (to surface)" , "Adhere to - ring" , "Hold tightly, become attached" , "Hold on tightly, be dependent" .)