Banks in wrangle to back movie type (7)
I believe the answer is:
western
'movie type' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe you can see a link between them that I can't see?
'banks in wrangle to back' is the wordplay.
'banks in' suggests removing the centre (the edges or banks of the word).
'to back' becomes 'stern' (stern is a kind of back).
'wrangle' with its middle removed is 'we'.
'we'+'stern'='WESTERN'
Can you help me to learn more?
(Other definitions for western that I've seen before include "Cowboys and Indians movie" , "Cowboys and Indians film" , "direction?" , "Cowboy film of occidental origin" , "American film" .)