Is backtracking over cold, current measure producing something fishy (6)

I believe the answer is:

scampi

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'measure producing something fishy' is the definition.
I can't tell whether this definition defines the answer.

'is backtracking over cold current' is the wordplay.
'backtracking' is a reversal indicator.
'over' indicates putting letters inside.
'cold' becomes 'c' (eg on taps).
'current' becomes 'amp' (electricity).
'is' backwards is 'si'.
'c'+'amp'='camp'
'si' placed around 'camp' is 'SCAMPI'.

Can you help me to learn more?

(Other definitions for scampi that I've seen before include "Shellfish" , "Dish of fried shrimps or prawns" , "Tasty prawns in batter" , "Type of seafood" , "Prawns (fried with breadcrumbs)" .)

I've seen this clue in the Irish Times.

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