Gypsy or Italian coming to a sticky end (6)
I believe the answer is:
romany
'gypsy' is the definition.
(synonyms)
'italian coming to a sticky end' is the wordplay.
'italian' becomes 'Roman' (someone from Rome).
'coming to' means one lot of letters go next to another.
'end' indicates one should take the final letters.
The final letter of 'sticky' is 'y'.
'roman'+'y'='ROMANY'
'or' acts as a link.
(Other definitions for romany that I've seen before include "Roy, man, you're a gypsy" , "one of those travelling" , "Traveller" , "Gypsy language" , "Language of gypsies" .)