Incorrectly tagged labour-saving device (6)

I believe the answer is:

gadget

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'labour-saving device' is the definition.
'gadget' can be an answer for 'device' (gadget is a kind of device). I am unsure of the 'labour-saving' bit.

'incorrectly tagged' is the wordplay.
'incorrectly' indicates an anagram (I've seen this in other clues).
'tagged' is an anagram of 'GADGET'.

Can you help me to learn more?

(Other definitions for gadget that I've seen before include "Small mechanical device or tool" , "Gismo" , "Useful small device" , "Nifty device" , "Handy device" .)

I've seen this clue in The Globe and Mail.

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