Tail-ender, perhaps, in more senses than one (6)

I believe the answer is:

rabbit

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'tail' is the definition.
(thesaurus)

I don't understand how the remainder of the clue works.

(Other definitions for rabbit that I've seen before include "Hare-like mammal" , "Waffle" , "Person poor at games" , "Fast-breeding hopper" , "Animal called coney" .)

I've seen this clue in the Evening Standard.

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