Crossword Genius

Crew figuratively executed by skater (5)

Ross

I believe the answer is:

eight

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'crew' is the definition.
(an eight-person rowing team)

I cannot understand how the rest of the clue works.

Can you help me to learn more?

(Other definitions for eight that I've seen before include "Number (of oarsmen?)" , "Mathematical cube" , "Crew of racing shell" , "One over it and you were drunk, it was said" , "Rowing boat crew" .)

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