Crossword Genius

Mistakes in time deserter included (6)

Ross

I believe the answer is:

errata

'mistakes' is the definition.
(an erratum is a mistake in a printed work)

'time deserter included' is the wordplay.
'time' becomes 'era' (era is a kind of time).
'deserter' becomes 'rat' (both can mean a traitor).
'included' means one lot of letters goes inside another.
'era' going around 'rat' is 'ERRATA'.

'in' acts as a link.

(Other definitions for errata that I've seen before include "mistakes in print" , "Noted mistakes" , "List of errors" , "Text mistakes" , "Mistakes in printing or writing" .)

I've seen this clue in The Telegraph.
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