Crossword Genius

After losing cases Iron Maiden drops one crew member (6)

Ross

I believe the answer is:

roadie

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'member' is the definition.
(I have seen 'Member of crew' mean 'roadie' so perhaps 'member' could also mean 'roadie')

I don't understand the rest of the clue.

Can you help me to learn more?

(Other definitions for roadie that I've seen before include "Musical tour crew member" , "Touring band's helper" , "Touring band's worker" , "Member of support crew" , "help with the group" .)

I've seen this clue in The Independent.
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