Virtuous sort with a drop hidden away (7)
I believe the answer is:
stashed
'hidden away' is the definition.
(I've seen this in another clue)
'virtuous sort with a drop' is the wordplay.
'virtuous sort' becomes 'st' (short for saint).
'with' says to put letters next to each other.
'drop' becomes 'shed' (shedding is a kind of dropping).
'st'+'a'+'shed'='STASHED'
(Other definitions for stashed that I've seen before include "Saved up for future use" , "hidden from view" , "'Hoarded, squirrelled away (7)'" , "hidden away" , "Stored away in a safe place" .)