Hi kettledrum,
Only thing I can come up with is DRAWER.
anagram of DREW + RA for artist.
A drawer in which valuables are kept in a vaulted room.
Best I can do.
Val.
Thanks Val...drawer isn't the answer but it forced me to look again at the answers I'd already got. It is a radial puzzle with answers going either from the centre outwards or the other way round. Each of a pair of answers share the first or last 3 letters depending on whether they go inwards or outwards. The answer to my problem's pair was CAIMAC, and stupidly I'd written it in in the wrong direction.....so my answer now reads C A M - R _. Camera.