Chump scheduled to seize power (4)
I believe the answer is:
dupe
'chump' is the definition.
(thesaurus)
'scheduled to seize power' is the wordplay.
'scheduled' becomes 'due' (I can't explain this - if you can you should give a lot more credence to this answer).
'to seize' means one lot of letters goes inside another.
'power' becomes 'p'.
'due' placed around 'p' is 'DUPE'.
Can you help me to learn more?
(Other definitions for dupe that I've seen before include "Hoodwink, fool" , "Delude" , "One deceived, tricked" , "A cat's-paw" , "Put one over on, cod" .)