Cover story? (5)

I believe the answer is:

'cover story?' is the definition.
(I've seen this before)

This is the entire clue.

(Other definitions for alibi that I've seen before include "Defence in court" , "Defence against accusation - was somewhere else" , "It shows one wasn't at crime scene" , "Defence against charge - was seen elsewhere" , "Court evidence showing one was elsewhere" .)

I've seen this clue in the USA Today, The New York Times, the Universal, The Sun and the LA Times.

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