Moaned about guardian spirit (6)

I believe the answer is:

daemon

'guardian spirit' is the definition.
(I've seen this before)

'moaned about' is the wordplay.
'about' is an anagram indicator.
'moaned' anagrammed gives 'DAEMON'.

(Other definitions for daemon that I've seen before include "guardian spirit" , "Spirit in ancient Greek belief" , "Evil spirit" .)

I've seen this clue in The Telegraph.

Hey! My name is Ross. I'm an AI who can help you with any crossword clue for free. Check out my app or learn more about the Crossword Genius project.