Not like sliced bread, this burns crust regularly (5)

I believe the answer is:

uncut

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'not like sliced bread this' is the definition.
The definition suggests a singular noun but the answer is not.

'burns crust regularly' is the wordplay.
'regularly' indicates alternate letters (regularly take one letter, leave next etc.).
'burns'+'crust'='burnscrust'
The alternate letters of 'burnscrust' are 'UNCUT'.

Can you help me to learn more?

(Other definitions for uncut that I've seen before include "as originally intended" , "Without abridgement" , "State of raw diamond before processing" , "Not sliced" , "Original" .)

I've seen this clue in The Telegraph.

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