Ecstatic feeling reversed unparalleled regret after consuming noodle soup (8)
I believe the answer is:
euphoria
'ecstatic feeling' is the definition.
(I've seen this before)
'reversed unparalleled regret after consuming noodle soup' is the wordplay.
I cannot really see how this works, but
'soup' could be 'pho' (type of Vietnamese soup) and 'pho' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for euphoria that I've seen before include "Blissful state" , "Exaggerated feeling of wellbeing" , "feeling good?" , "Over-optimism" , "Irrational high" .)