Talk nonsense when given something to eat (6)
I believe the answer is:
waffle
'talk nonsense' is the definition.
(thesaurus)
'when given something to eat' is the wordplay.
I cannot really see how this works, but
'when' could be 'e' (I've seen this in other clues) and 'e' is located in the answer.
'something to eat' could be 'a' (A is an example) and 'a' is located in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for waffle that I've seen before include "Talk at length about nothing" , "Talk but say very little!" , "Crisp pancake with indents on both sides - talk aimlessly" , "that may take some swallowing" , "something for breakfast" .)