Refute that one can possibly be in a rut (5)
I believe the answer is:
rebut
'refute that one' is the definition.
'rebut' can be an answer for 'refute' (I've seen this in another clue). I'm unsure of the rest of the definition.
'possibly be in a rut' is the wordplay.
'possibly' is an anagram indicator.
'in' is an insertion indicator.
'be' is an anagram of 'eb'.
'eb' inserted into 'rut' is 'REBUT'.
'can' is the link.
Can you help me to learn more?
(Other definitions for rebut that I've seen before include "Check" , "Refure or disprove" , "Overthrow by argument or proof" , "Prove (something) to be false" , "Disprove an accusation" .)