It’s inevitable these days; tea with redheads keeping company (7)

I believe the answer is:

charger

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But I can't explain it at all! Could you help me understand?

(Other definitions for charger that I've seen before include "A large dish or a cavalry horse" , "I expect payment" , "One may provide juice" , "Battle horse" , "Horse - plate" .)

I've seen this clue in The Hindu.

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