Small amount in France held back by virtuoso (3)
I believe the answer is:
sou
'small amount' is the definition.
(I've seen this in another clue)
'held back by virtuoso' is the wordplay.
'back by' shows that the letters should be reversed in order.
'held' says the answer is hidden in the clue.
'uos' is hidden in the letters of 'virtuoso'.
'uos' backwards is 'SOU'.
'in france' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for sou that I've seen before include "bit of money" , "almost worthless" , "Defunct French coin" , "Very small amount of money" , "Former French coin of low value" .)