Surprised comment about world leader yielding power in rebellion (6)
I believe the answer is:
mutiny
'power in rebellion' is the definition.
'mutiny' can be an answer for 'rebellion' (mutiny is a kind of rebellion). I am not certain of the 'power in' bit.
'surprised comment about world leader' is the wordplay.
'surprised comment' becomes 'my' (expression of surprise).
'about' is an insertion indicator.
'world leader' becomes 'utin' (I am not sure about this - if you are sure you should believe this answer much more).
'my' going around 'utin' is 'MUTINY'.
'yielding' acts as a link.
Can you help me to learn more?
(Other definitions for mutiny that I've seen before include "Open rebellion by sailors or soldiers" , "Open rebellion against constituted authority" , "Military rebellion" , "Rebellion in the armed forces" , "Revolt against authority" .)