Yours (5)
'yours' is the definition.
(I've seen this in another clue)
This is all the clue.
(Another definition for thine that I've seen is " Yours (archaic)".)
(Other definitions for its that I've seen before include "Another form of 'tis" , "Sit (anag.)" , "Belonging to something nonhuman" , "Neuter possessive pronoun" , "Belonging to a particular thing" .)