Popcorn seasoning (4)

I believe the answer is:

salt

'popcorn seasoning' is the definition.
(I've seen this in another clue)

This is the entire clue.

(Other definitions for salt that I've seen before include "A defence against ice" , "Preserve" , "Seasoned sailor" , "Condiment - experienced sailor" , "NaCl" .)

I've seen this clue in The Star Tribune, the USA Today, the Penny Press, the King Feature Syndicate and the Family Time.

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