It contributes to the obscurity of palmistry (4)

I believe the answer is:

mist

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'it contributes to the obscurity' is the definition.
The definition suggests a singular noun which matches the answer.

'of palmistry' is the wordplay.
'of' indicates a hidden word.
'MIST' is hidden in the letters of 'palmistry'.

Can you help me to learn more?

(Other definitions for mist that I've seen before include "Watery film" , "Slight fog" , "Obscure" , "low-level cloud" , "Cloud; thin fog" .)

I've seen this clue in the Evening Standard.

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