Is inclined to make slits (5)
I believe the answer is:
lists
'is inclined' is the definition.
(list can mean to lean or tip over)
'make slits' is the wordplay.
'make' indicates an anagram.
'slits' with letters rearranged gives 'LISTS'.
'to' acts as a link.
(Other definitions for lists that I've seen before include "Itemises" , "Records" , "Of ship, leans over to one side" , "Rotas" , "Leans; tables" .)