Variety the spice of long adventure films? (5)
I believe the answer is:
'long adventure films?' is the definition.
The answer and definition can be both related to communication as well as being plural nouns.
Perhaps they are linked in a way I don't understand?
'variety the spice' is the wordplay.
'variety' indicates an anagram.
'spice' anagrammed gives 'EPICS'.
'of' acts as a link.
Can you help me to learn more?
(Other definitions for epics that I've seen before include "Long tales of heroic deeds" , "Long poems about great events" , "Spice up with adventurous poems or stories" , "Long narrative poems telling of deeds of heroes" .)