CRYPTIC CLUES

Across

1 They're used when surveying aircraft schedules (5-6)

9 A brandy and soda for Margaret (3)

10 Reveal it's capable of changing (9)

11 Get in a tangle with a composer (5)

13 Variety of Robinia found in African safari base (7) 14 What the defendants put forward, we hear, to give satisfaction (6) 16 A saving grace? (6)

18 Seal I'm to put in black and white (7)

19 Stop in Panamanian port (5)

20 An extreme part added on at the end (4-5)

21 This will set the pattern for a shortened food course (3)

22 Elementally disturbed, in the main (5-6)

Down

2 Make a record of a mathematical term (3) 3 Book Five in Christmas setting (5)

4 It's exhausting bringing it back to the arena (6) 5 Grizzly sort of tendency on the stock market (7) 6 Known as a leader among journalists (9) 7 Suitable to take possession of (11) 8 Payments that will give Mac interest (11)

12 Invite P.O.W to give an opinion (9)

15 The captain is one who can handle a rope (7) 17 One of the ways in which urban life can be seen (6)

19 Sounds like a pleasuretrip for the seamen (5) 21 Should be settled as a fee (3)