Dukes in anger posing cryptic question (6)
I believe the answer is:
riddle
'cryptic question' is the definition.
(I've seen this before)
'dukes in anger' is the wordplay.
'dukes' becomes 'dd' (an abbreviation for duke written twice).
'in' is an insertion indicator.
'anger' becomes 'rile' (rile can mean to annoy or anger).
'dd' placed inside 'rile' is 'RIDDLE'.
'posing' acts as a link.
This may not be right. It may belong to another bit of the clue.
Can you help me to learn more?
(Other definitions for riddle that I've seen before include "Cryptic statement" , "Puzzling person, thing" , "sort out" , "Ingenious question" , "Run through" .)