1: Tine expert no good (5)
2: Top-flight hairstyle instead (9)
3: Spy pinched mere fragments of treaty (9)
4: Clean oneself, but in reverse (3)
6: Oxygen is pretty amusing. (3)
7: New York island is hellish without boundaries (5)
8: We hear you cannot pay, so you can't smell. (9)
10: Oscillating crystal perhaps not so rare (9)
13: Taste of beer and liquor with game (3-6)
15: Great Dane running about outside caf (3-6)
16: Dining on donuts, for the sake of argument? (9)
17: Degree consumes all-Ireland dancing girl (9)
21: Fold suit and undershirt (5)
23: Fires partner in investment firm, we hear (5)
25: 4-down Arias hit high note in some of the lungs (3,3)
26: Ball tops over-ripe bananas (3)