Eat around six? Wonderful! (6)
I believe the answer is:
divine
'wonderful' is the definition.
(both can mean excellent)
'eat around six?' is the wordplay.
'eat' becomes 'dine' (to dine is to eat a meal).
'around' indicates putting letters inside.
'six?' becomes 'VI' (Roman numerals).
'dine' enclosing 'vi' is 'DIVINE'.
(Other definitions for divine that I've seen before include "Godly or celestial" , "Of or coming from God" , "Apprehend" , "Like a god; delightful" , "Guess" .)