Protest concerning giant almost consuming rodent (11)
I believe the answer is:
remonstrate
'protest' is the definition.
(I've seen this before)
'concerning giant almost consuming rodent' is the wordplay.
I cannot really understand how this works, but
'concerning' could be 're' (both can mean on a particular topic) and 're' is found within the answer.
'rodent' could be 'rat' (rat is a kind of rodent) and 'rat' 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 remonstrate that I've seen before include "Argue in protest" , "Make a forcefully reproachful protest" , "Take issue with" , "Take exception to" , "Make a forceful protest" .)