Crossword Genius

Chill with chemical industry head (7)

Ross

I believe the answer is:

iciness

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'chill' is the definition.
(I know that chill can be written as iciness)

'chemical industry head' is the wordplay.
'chemical industry' becomes 'ici' (I am not sure about this - if you are sure you should believe this answer much more).
'head' becomes 'ness' (ness is a headland).
'ici'+'ness'='ICINESS'

'with' acts as a link.

Can you help me to learn more?

(Other definitions for iciness that I've seen before include "Chill; reserve" , "Frozen state of" , "Unapproachability" , "unfriendly manner" , "Hostility, unfriendliness" .)

I've seen this clue in The Independent.
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