Crossword Genius

A warehouse robbed of Old Master (5)

Ross

I believe the answer is:

adept

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

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

I can't explain the rest of the clue.

Can you help me to learn more?

(Other definitions for adept that I've seen before include "Accomplished" , "Thoroughly proficient" , "Deacon" , "clever" , "Having the skill required" .)

I've seen this clue in The Times.
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.