Timid person I click with? (5)
I believe the answer is:
mouse
I believe this clue is a double definition.
'timid person' is the first definition.
'i click with?' is the second definition.
(you might click with a computer mouse)
(Other definitions for mouse that I've seen before include "Wimp" , "Computer accessory" , "retiring person" , "One sitting by computer" , "Quiet person" .)