A quiet, inoffensive type one may possibly click with (5)

I believe the answer is:

mouse

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'click with' is the definition.
The definition and answer can be both man-made objects as well as being singular nouns.
Perhaps there's an association between them I don't understand?

I can't explain the remainder of the clue.

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(Other definitions for mouse that I've seen before include "whose movements are captured on screen" , "black eye" , "Wimp" , "Small creature" , "Timid fellow" .)

I've seen this clue in the Evening Standard.

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