JM Crossword 55
Across
1.  Its shadow causes eclipses. (4)
3.  Turn a tuba about to lean on. (4)
6.  It is worth having a donkey followed by an extra terrestrial. (5)
8.  Was it under a shadow on 22/07/09 ? (3) 
10. A question in a flask ? (3)
12. The last broken den. (3)
14. Brightly following the night. (3)
16. The mistake in terror. (5)
17. Found in the oceans and in sal trees. (4)
18. Nips around to turn round and round. (4)
Down
1.  Decoded spam could show you the way. (4)
2.  Moan around near the Persian gulf. (4)
4.  The second letter in Greek and the on in Hindi. (4)
5.  Good wood obtained when the kettle in initially added to the tea! (4)
7.  Rise around a roman fifty to get something referring to 8 ac. (5)
9.  A vase in a turn. (3)
11.  Seen at the beach it has a lot of 17 ac. (3)
12. Consumes by mixing up the east. (4)
13. Upsets the lead to make an agreement. (4)
14. Given drop by drop in case of medical emergencies. (4)
15. A story woven from it? (4)