Not all dealt a round for table (5)
I believe the answer is:
altar
'for table' is the definition.
(altar is a kind of table)
'not all dealt a round' is the wordplay.
'not all' indicates a hidden word (only some of the letters).
'ALTAR' is hidden in the letters of 'dealt a round'.
(Other definitions for altar that I've seen before include "section of church" , "where sacrifices are made" , "Sacrificial structure" , "Where Lucy Ashton was led" , "Sacrificial block" .)