What does the cryptic crossword clue "Pompous pair not out, but one might take you out! (8)" mean?

The definition is "one might take you out!". The wordplay uses a double definition. Double definition The answer is ASSASSIN.

Pompous pair not out, but one might take you out! (8)

Guardian Cryptic #26906 | 27 Across | 2016-06-09 flower