Good afternoon, Rusty!
How was your outing?
I hope you both had a good time.
Were there any (Sicilian) crepes on the menu?
I hope you tried them if there were?
I did eventually do the crosswords, in between a lot of other things......phone calls, chores, and general distractions!
I have answers for all of the 15 x15, but still about four to parse successfully.
For the one you were querying, 17a, I have "punctuation".......
up - leading ( reversed) + anagram of "nation cut".
Is this what you have ?
I especially liked 4d: "chariot race"!
I am easily led astray today...it is lovely out in the garden.....not as oppressively hot as yesterday, and it is pleasant sitting out there, reading.....