Out of sorts after rum truffle (7)
I believe the answer is:
fretful
'out of sorts' is the definition.
Both the answer and definition are adjectives. Perhaps they are linked in a way I don't understand?
'rum truffle' is the wordplay.
'rum' is an anagram indicator (rum can mean strange or unusual).
'truffle' is an anagram of 'FRETFUL'.
'after' acts as a link.
Can you help me to learn more?
(Other definitions for fretful that I've seen before include "Peevish" , "Anxious" , "Querulous" , "on edge" , "Unsettled, irritated" .)