Increased touring to Italy, a paradise (6)
I believe the answer is:
utopia
'paradise' is the definition.
(I've seen this in another clue)
'increased touring to italy a' is the wordplay.
'increased' becomes 'up'.
'touring' means one lot of letters goes inside another (touring can mean going round).
'italy' becomes 'i'.
'up' placed around 'to' is 'utop'.
'utop'+'i'+'a'='UTOPIA'
(Other definitions for utopia that I've seen before include "More's imaginary state" , "Thomas More's ideal state" , "Imagined state of perfection" , "of limited interest to G&S" , "Ideal country" .)