One of the clues in last Friday’s cryptic crossword in the i newspaper (№ 2162 by Morph) is:
Light device, still mobile (9)
My solution is PHOTOCELL. And I notice that the phrase “still mobile” is an oxymoron.
Phone American city. (6)
Answer: MOBILE. Mobile (pronounced [məʊˈbiːl]) is in Alabama, USA.