Drop shade with force (7)

I believe the answer is:

plummet

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'drop' is the definition.
(plummet is a kind of drop)

'shade with force' is the wordplay.
'shade' becomes 'plum' (I've seen this before).
'with force' becomes 'met' (I've seen this in other clues. I am not sure about the 'with' bit.**).
'plum'+'met'='PLUMMET'

Can you help me to learn more?

(Other definitions for plummet that I've seen before include "Fall at high speed" , "Plunge headlong" , "Drop vertically and fast" , "Fall like a stone" , "Drop at speed" .)

I've seen this clue in The Telegraph.

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