Fruit consumed by Roman gods (5)
I believe the answer is:
mango
'fruit' is the definition.
(type of fruit)
'consumed by roman gods' is the wordplay.
'consumed by' indicates a hidden word (inserted letters get consumed).
'MANGO' is hidden in the letters of 'roman gods'.
(Other definitions for mango that I've seen before include "Tropical fruit, its pickle" , "No, Mag has the odd fruit" , "Once exotic fruit" , "Asian fruit" , "product" .)