Paint a toad for a change? Yes (10)
I believe the answer is:
adaptation
'yes' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Maybe there's a link between them I don't understand?
'paint a toad for a change?' is the wordplay.
'for a change?' is an anagram indicator (I've seen 'for a change' mean this).
'paint'+'a'+'toad'='paintatoad'
'paintatoad' is an anagram of 'ADAPTATION'.
Can you help me to learn more?
(Other definitions for adaptation that I've seen before include "screen version?" , "to do with evolution" , "change" , "Version for TV of a feature" , "Adjustment" .)