Crossword Genius

An alternative to a key ring (3)

Ross

I believe the answer is:

orb

'ring' is the definition.
(I've seen this before)

'an alternative to a key' is the wordplay.
'an alternative' becomes 'or'.
'to a key' becomes 'b' (eg B major, musical key).
'or'+'b'='ORB'

(Other definitions for orb that I've seen before include "Ring" , "A sphere or globe" , "Part of royal regalia" , "Ceremonial globe carried by a monarch" , "component of royal regalia" .)

I've seen this clue in The Globe and Mail.
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