Go off in a huff in the manner of uncle (7)
I believe the answer is:
flounce
'go' is the definition.
(I know that flounce is a more specific form of the action walk)
'off in a huff in the manner of uncle' is the wordplay.
'of uncle' can be anagrammed to 'FLOUNCE'.
But, I am not clear how this is indicated.
Can you help me to learn more?
(Other definitions for flounce that I've seen before include "Ornamental gathered strip on garment" , "Move with pettish impatience" , "Move in a pet" , "A ruffle; walk (out) in huff" , "An impatient annoyed movement or a deep frill" .)