Flyer has stupidly gone wide pointlessly (7)
I believe the answer is:
widgeon
'flyer' is the definition.
Although both the answer and definition are singular nouns, I can't understand how one could define the other.
'stupidly gone wide pointlessly' is the wordplay.
I cannot really understand how this works, but
an anagram of 'gone' is 'geon' which is present in the answer.
'wide' could be 'w' (abbreviation e.g. in cricket) and 'w' is found in the answer.
The remaining letters 'id' 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).
'has' acts as a link.
Can you help me to learn more?
(Other definitions for widgeon that I've seen before include "Type of duck" , "Bird" , "Freshwater duck - wine god (anag)" , "Owed gin (anag) - duck" , "Duck with pointed wings and wedge-shaped tail" .)