A fox will do this and dance (4)
I believe the answer is:
trot
This clue might be a double definition.
'a fox' is the first definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe you can see an association between them that I can't see?
'do this and dance' is the second definition.
The definition suggests a singular noun which matches the answer.
'will' is the link.
Can you help me to learn more?
(Other definitions for trot that I've seen before include "Left-winger - move at a fair speed" , "Horse's gait - extreme leftist" , "Run with short steps" , "Clip (horse)" , "Jogging pace" .)