To drip in slow fashion (6)

I believe the answer is:

torpid

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'slow fashion' is the definition.
'torpid' can be an answer for 'slow' (thesaurus). I am unsure of the 'fashion' bit.

'to drip' is the wordplay.
'to drip' can be anagrammed to 'TORPID'.
However, I'm not clear how this is indicated.

'in' is the link.

Can you help me to learn more?

(Other definitions for torpid that I've seen before include "Slow, dull" , "hibernating?" , "Inert" , "Lethargic, sluggish" , "Lethargic - drop it (anag)" .)

I've seen this clue in the Evening Standard.

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