It's funny, what an owl can do (4)
I believe the answer is:
hoot
'do' is the definition.
The answer and definition can be both related to communication as well as being singular nouns.
Perhaps you can see an association between them that I don't see?
'it's funny what an owl' is the wordplay.
I cannot quite see how this works, but
'it' could be 't' (abbreviation. e.g. in 'tis) and 't' is present in the answer.
The remaining letters 'hoo' is a valid word which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
'can' is the link.
Can you help me to learn more?
(Other definitions for hoot that I've seen before include "Owl's cry" , "Warning sound - something not given by the careless!" , "Screech" , "Raucous cry" , "what's voiced in parliament?" .)