A police group is receiving huge complaint (8)

I believe the answer is:

acidosis

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'complaint' is the definition.
The definition and answer can be both states of affairs as well as being singular nouns.
Perhaps there's an association between them I don't understand?

'a police group is receiving huge' is the wordplay.
'police group' becomes 'CID' (abbreviation for Criminal Investigation Department).
'receiving' is an insertion indicator.
'huge' becomes 'os' (abbreviation for outsize).
'cid'+'is'='cidis'
'cidis' enclosing 'os' is 'cidosis'.
'a'+'cidosis'='ACIDOSIS'

Can you help me to learn more?

(Other definitions for acidosis that I've seen before include "A disco is (anag) - an imbalance in the blood" , "Blood disorder involving low pH" .)

I've seen this clue in The Times.

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