Test option for replacing adhesive bit of paper (4-2,4)

I believe the answer is:

post-it note

'adhesive bit of paper' is the definition.

'test option for replacing' is the wordplay.
'for replacing' is an anagram indicator (for placing the letters again).
'test'+'option'='testoption'
'testoption' with letters rearranged gives 'POST-IT NOTE'.

I've seen this clue in The Independent.

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