What’s wrapped in Cambridge burial place (8)

I believe the answer is:

catacomb

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

I don't understand the remainder of the clue.

(Other definitions for catacomb that I've seen before include "Subterranean cemetery" , "Underground network" , "underground tunnels" , "Underground burial chamber" , "set of tunnels" .)

I've seen this clue in The Times.

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