This has really got me stumped! It's the last clue in a local quiz in which the answers are, sound like or spelt like capital cities. The one remaining is
Departs
We know it isn't Quito, as this is the answer to another clue which is "Finish with a zero"
very very very "iffy" = VADUZ (liechtenstein)
D is the middle letter
Therefore D parts the other letters
Shame there aren't capital cities D roles or D bits etc
Tokyo - good, but I'm thinking that a homophone should be plural (departS).
VaDuz - very cryptic; not sure that the setter is so cunning! But, in event of nothing more obvious coming up, it's definitely worth thinking about.
Keep them coming!!