Cryptic crossword No 192

Across

1. Which is to say, during air travel, they might brush past you (7)
2. Agenda of cat: make cute noises; run away; sit still (7)
3. Before it's over, find revolver (4)
4. Articulated pneumatic wheel part fulfils function (4-6)
5. Distant outback is where to look for elephants (6)
6. Powerful speech from childless Trojan hero in brick house with walls demolished (8)
7. Multi-sided dice arced overhead when thrown (9)
8. Land right in the centre of the planet (5)
9. Keep your eye on the clock (5)
10. Two men, one short, one aristocratic (9)
11. Shots taken at point-blank range? (5-3)
12. See 27
13. It's all extremely flimsy inside (10)
14. You'll be late for your appointment with him (4,6)
15. Flamethrower leads to embarrassing year on hospital cart (7)
16. Hawks circle around last of cowboy posse crossing western ravine (7)

Down

1. First person at university to get eaten by ape (7)
2. Old boss in a state, often getting drunk in the evening (5)
3. Imply? (7)
4. Clouded sun lit up a poetic evening (6)
5. Old-time maverick cop trio catching a Tibetan cow (9)
6. Oddly suitable, musclebound individual (7)
7. Office in charge of providing public works (13)
8. Disruption as Central Line going down for ages! (9)
9. Finished swapping dungarees (3,4)
10. He maybe shifted car's gear without engaging clutch first (4,3)
11. Friendship needs to allow space for comfort (7)
12. Somebody shelled makeshift turret after changing side once (6)
13. Varied range of emotion (5)