Colourful words including one between yellow and blue (7)
I believe the answer is:
oratory
'colourful words' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe there's an association between them I don't understand?
'including one between yellow and blue' is the wordplay.
'including' means one lot of letters goes inside another.
'one' becomes 'a'.
'between yellow' becomes 'or' (heraldic term. I am not sure about the 'between' bit.**).
'and' means one lot of letters go next to another.
'blue' becomes 'tory' (I've seen this in other clues).
'or'+'tory'='ortory'
'a' placed inside 'ortory' is 'ORATORY'.
Can you help me to learn more?
(Other definitions for oratory that I've seen before include "Rhetoric - chapel" , "Place for private prayer" , "prayer room" , "formal speech" , "Art of public speaking or small chapel" .)