Roughly tear up over half to stuff in the hole (8)
I believe the answer is:
aperture
'hole' is the definition.
(I know that aperture is a type of hole)
'roughly tear up over half to stuff' is the wordplay.
'roughly' indicates an anagram.
'half' suggests halving the letters.
'to stuff' indicates putting letters inside.
'over' halved is 'er'.
'tear'+'up'='tearup'
'tearup' anagrammed gives 'apture'.
'apture' going around 'er' is 'APERTURE'.
'in the' is the link.
(Other definitions for aperture that I've seen before include "Small hole or opening" , "Crack" , "Device controlling amount of light admitted" , "Hole, gap" , "Opening (on camera, for example)" .)