The Stage has article on hosting panto regularly (7)
I believe the answer is:
theatre
'the stage' is the definition.
(theatre stage is a kind of stage)
'article on hosting panto regularly' is the wordplay.
'article' becomes 'the' (the definite article in English).
'on' becomes 're' (regarding).
'hosting' means one lot of letters goes inside another (inserted letters are welcomed in or hosted).
'regularly' means one should take alternating letters (regularly take one letter, leave next etc.).
The alternating letters of 'panto' are 'at'.
'the'+'re'='there'
'there' placed around 'at' is 'THEATRE'.
'has' is the link.
(Other definitions for theatre that I've seen before include "Eg, Oxford's Sheldonian" , "Location for plays and operations" , "US cinema" , "Site of plays or surgery" , "place of action" .)