A release from the BBC (6)
I believe the answer is:
auntie
'the bbc?' is the definition.
(I've seen this before)
'a release' is the wordplay.
'release' becomes 'untie' (I've seen this before).
'a'+'untie'='AUNTIE'
'from' is the link.
(Other definitions for auntie that I've seen before include "BBC; relative (colloq,)" , "Untie a relative" , "Close relative" , "Unite a strange relative" , "Name for BBC" .)