Admitting (6)
'admitting' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for owning that I've seen before include "In legal possession of" , "Admitting" , "Possesing" , "Conceding - possession" , "Being in possession or confessing" .)
'admitting' is the definition.
('let in' can be a synonym of 'admit')
This is the entire clue.
(Another definition for letting in that I've seen is " Admitting".)