In wild rage, hastened to fix things up (7)
I believe the answer is:
arrange
'fix things up' is the definition.
I can't judge whether this defines the answer.
'in wild rage hastened' is the wordplay.
'in' means one lot of letters goes inside another.
'wild' is an anagram indicator.
'hastened' becomes 'ran' (I've seen this before).
'rage' is an anagram of 'arge'.
'arge' placed around 'ran' is 'ARRANGE'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for arrange that I've seen before include "Put in systematic order" , "Bring about or put in order" , "Place in order" , "Put in neat order" , "Put in sequence" .)