Have a meal about six, like a god (6)
'like a god' is the definition.
(I've seen this before)
'have a meal about six' is the wordplay.
'have a meal' becomes 'dine' (I've seen this before).
'about' indicates putting letters inside.
'six' becomes 'VI' (roman numeral).
'dine' placed around 'vi' is 'DIVINE'.
(Other definitions for divine that I've seen before include "Emanating from God", "Sacred; delightful", "Guess", "Heavenly", "Like a god; delightful".)