Crossword Genius

Devil doctor in his study (5)

Ross

I believe the answer is:

demon

I'm a little stuck... Click here to teach me more about this clue!

'devil' is the definition.
(I know that devil can be written as demon)

'doctor in his study' is the wordplay.
I cannot really see how this works, but
'doctor' could be 'mo' (medical officer) and 'mo' is present in the answer.
'study' could be 'den' (term for a study or office) and 'den' is found within the remaining letters.
No letters remain.
This explanation may well be incorrect...

Can you help me to learn more?

(Other definitions for demon that I've seen before include "Evildoer" , "Evil spirit, devil" , "Genius" , "Fanatic; devil" , "malignant spirit" .)

I've seen this clue in The Irish Independent.
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.