Oddly regret interrupting higher authority, perhaps, who ate far too much (6)
I believe the answer is:
gorged
'who ate far too much' is the definition.
I can't judge whether this defines the answer.
'oddly regret interrupting higher authority' is the wordplay.
'oddly' means one should take alternating letters (letters in odd-numbered positions).
'interrupting' means one lot of letters goes inside another.
'higher authority' becomes 'god' (I can't justify this - if you can you should give a lot more credence to this answer).
The alternating letters of 'regret' are 'rge'.
'rge' going into 'god' is 'GORGED'.
'perhaps' acts as a link.
Can you help me to learn more?
(Other definitions for gorged that I've seen before include "Swallowed greedily" , "Stuffed from eating, filled with food" , "Ate greedily until too full" , "wolfed greedily" , "Ate greedily to choking point" .)