Crossword Genius

Old-style allegiance (6)

Ross

I believe the answer is:

fealty

(Other definitions for fealty that I've seen before include "The loyalty that citizens owe their country" , "Loyalty to feudal superior" , "expression of commitment" , "Vassal's sworn loyalty to a lord (historical)" , "Old-fashioned loyalty or allegiance" .)

I've seen this clue in The Guardian.
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