Crossword Genius

Part of book removed from a theatregoer, perhaps? (8)

Ross

I believe the answer is:

appendix

I believe this is a double definition.

'part of book' is the first definition.
(I've seen this before)

'removed from a theatregoer perhaps?' is the second definition.
(as in an operating theatre)

(Other definitions for appendix that I've seen before include "extra pages" , "Final part of work" , "sometimes removed?" , "often discarded in theatre" , "Outgrowth of intestine, often surgically removed" .)

I've seen this clue in The Times.
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