Being inclined to remove the top and bottom (6)

I believe the answer is:

ending

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'bottom' is the definition.
The answer and definition can be both related to time as well as being singular nouns.
Maybe there's an association between them I don't understand?

I don't understand the remainder of the clue.

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(Other definitions for ending that I've seen before include "terminal" , "Stopping" , "Climax" , "Close - conclusion" , "Finishing" .)

I've seen this clue in the Evening Standard.

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