What could make cat act? (7)
I believe the answer is:
anagram
'act?' is the definition.
The definition and answer can be both related to communication as well as being singular nouns.
Maybe there's a link between them I don't understand?
I don't understand the rest of the clue.
Can you help me to learn more?
(Other definitions for anagram that I've seen before include "Word(s) rearranged to form others" , "Word arranged from the letters of another" , "Mix-up" , "pouring the tea?" , "Word formed by changing the order of letters in another" .)