Have the edge in one Italian resort (6)
I believe the answer is:
rimini
'italian resort' is the definition.
(I've seen this before)
'have the edge in one' is the wordplay.
I cannot really see how this works, but
'edge' could be 'rim' (rim is a kind of edge) and 'rim' is found in the answer.
'in' is within the answer.
'one' could be 'i' (Roman numeral) and 'i' is present in the answer.
This accounts for all the letters.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for rimini that I've seen before include "Francesca's place" , "Italian place" , "North-east Italian Adriatic resort" , "Italian Adriatic port" , "N. Italian city" .)