See BBC boss back to the Masonic premises (5)
I believe the answer is:
lodge
'masonic premises' is the definition.
Although both the answer and definition are singular nouns, I cannot see how one could define the other.
'see bbc boss back to the' is the wordplay.
'see' becomes 'lo' ('lo' is an archaic exclamation meaning 'look!').
'bbc boss' becomes 'DG' (short for director-general of the BBC).
'back to' suggests the final letters.
The last letter of 'the' is 'e'.
'lo'+'dg'+'e'='LODGE'
Can you help me to learn more?
(Other definitions for lodge that I've seen before include "Small house at gates of park or estate" , "Deposit in bank, or beaver's lair" , "Provide quarters" , "Chalet" , "See 9" .)