Union leader removed wheat under the kitchen container to get to the instrument (10)
I believe the answer is:
kettledrum
'instrument' is the definition.
(kettledrum is a kind of instrument)
'union leader removed wheat under the kitchen container to get to the' is the wordplay.
I cannot quite see how this works, but
'union' could be 'u' (common abbreviation as in 'Trades Union Congress') and 'u' is found in the answer.
'leader' could be 'e' (I've seen this in other clues) and 'e' is found within the answer.
'the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found within the answer.
'to the' could be 't' (the is pronounced as a 't' sound in some dialects) and 't' is found in the answer.
This may be the basis of clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for kettledrum that I've seen before include "One beaten by player" , "Part of kitchen" , "Orchestral instrument" , "Large percussion instrument" , "one beaten with sticks" .)