Aristocrats, small number moved by current sign (10)
I believe the answer is:
noblewomen
'aristocrats' is the definition.
(noblewoman is a kind of aristocrat)
'small number moved by current sign' is the wordplay.
'small number' becomes 'no' (abbreviation for 'number'; 'small' indicates a short form).
'moved' becomes 'blew' (blowing is a kind of moving).
'by' says to put letters next to each other.
'current sign' becomes 'omen' (omen is a kind of sign. I am not sure about the 'current' bit.).
'no'+'blew'+'omen'='NOBLEWOMEN'
Can you help me to learn more?
(Other definitions for noblewomen that I've seen before include "some of the aristocracy" , "ladies" , "Peeresses" , "Aristocrats" .)