Has (4)
'has' is the definition.
('own' can be a synonym of 'have')
This is all the clue.
(Other definitions for owns that I've seen before include "Admits possession" , "Confesses" , "Possesses" , "uses" , "Has possession of by right" .)
'has' is the definition.
(eating is a kind of having)
This is the entire clue.
(Other definitions for eats that I've seen before include "Sate (anag.)" , "Grazes perhaps" , "Comestibles" , "Common grub" , "Food (informal)" .)
(Other definitions for been that I've seen before include "Past participle of be" , "(Have) gone in the past (to somewhere)" .)