Accommodate a meeting house (5)
I believe the answer is:
lodge
This could be a double definition.
'accommodate' is the first definition.
('lodge' can be a synonym of 'accommodate')
'a meeting house' is the second definition.
'lodge' can be an answer for 'house' (lodge is a kind of house). I am not sure about the 'a meeting' bit.
Can you help me to learn more?
(Other definitions for lodge that I've seen before include "Become firmly fixed" , "Fix" , "Comic novelist" , "Masonic meeting place" , "Beaver's home - hunters use it!" .)