One of seven cohabiting miners is exhibiting possible Covid symptom? (6)

I believe the answer is:

sneezy

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'one of seven' is the definition.
(one of Disney's seven dwarves)

I cannot understand how the rest of the clue works.

(Other definitions for sneezy that I've seen before include "Dwarf (with a hanky?)" , "(Dwarf) beset with hay fever" , "Doc's pal with hay fever" , "Disney dwarf - with a cold?" , "Showing signs of a cold" .)

I've seen this clue in The Irish Times.

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