Signs of single Italians moving, leaving area (8)
I believe the answer is:
initials
'signs' is the definition.
(initial is a kind of sign)
I cannot understand how the remainder of the clue works.
Can you help me to learn more?
(Other definitions for initials that I've seen before include "Signs briefly" , "First letters as of names" , "Lisa in it (anag)" , "Components of an acronym" .)