Sliver (8)
'sliver' is the definition.
(I know that sliver can be written as splinter)
This is all the clue.
(Other definitions for splinter that I've seen before include "Sharp piece of glass or metal - shatter" , "Break into fragments, shatter" , "Shard" , "Sliver of wood, sore in the flesh" , "Small thin sharp bit of wood, glass or metal" .)
'sliver' is the definition.
(thesaurus)
This is the entire clue.
(Other definitions for slice that I've seen before include "shot in golf that goes astray" , "Portion (of cake)" , "Thin flat piece" , "Piece cut from a larger portion" , "Cut into portions" .)