For starters, only the virtuous have them! (7)
I believe the answer is:
novices
'for starters' is the definition.
(I've seen this before)
I don't understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for novices that I've seen before include "Beginners, who have not sinned?" , "Converts" , "starters?" , "Tyros" , "Beginners; nuns" .)