Strange Case of the End of Civilization as We Know It

Dr. William Watson, M.D.:
1 Across. A simple source of citrus fruit, 1, 5, 4.

Arthur Sherlock Holmes:
A lemon tree, my dear Watson.

Dr. William Watson, M.D.:
2 Down. Conservative pays ex-wife maintenance. 7, 5.

Arthur Sherlock Holmes:
Alimony...alimony Tory, my dear Watson.

Arthur Sherlock Holmes:
Never cease to astound me.

Dr. William Watson, M.D.:
2 Down. Southern California style. 1, 2, 8.

Arthur Sherlock Holmes:
A la Monterrey, my dear Watson.

Dr. William Watson, M.D.:
Really good, holmes.

Dr. William Watson, M.D.:
4 Down. Burglar's entrance

Arthur Sherlock Holmes:
Alarm entry, my dear Watson

Dr. William Watson, M.D.:
That's rather poor, isn't it, Holmes? Right. One to go. A kind of fish with a sting in its tail.

Arthur Sherlock Holmes:
Yellow manta ray, my dear Watson

Dr. William Watson, M.D.:
Brilliant, Holmes