Sloth one near it disturbed (7)
I believe the answer is:
inertia
'sloth' is the definition.
(inertia can mean laziness or sloth)
'one near it disturbed' is the wordplay.
'one' becomes 'i' (Roman numeral).
'disturbed' indicates an anagram (the order of letters is disturbed).
'near'+'it'='nearit'
'nearit' anagrammed gives 'nertia'.
'i'+'nertia'='INERTIA'
(Other definitions for inertia that I've seen before include "Apathy" , "I retain, being without energy" , "Lack of inclination to move" , "Passivity" , "inclination not to budge" .)