Concealed or secret (6)

I believe the answer is:

covert

I believe this is a double definition.

'concealed' is the first definition.
(similar in meaning)

'secret' is the second definition.
(similar in meaning)

(Other definitions for covert that I've seen before include "Concealed, like fox's lair" , "place for game" , "Concealed, secret" , "Not acknowledged" , "in this secret place?" .)

I've seen this clue in The Mirror and the Sydney Morning Herald.

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.