I've now completed
The alternative to a beer, is one which a pirate would definitely choose.
The synonyms start with 30Dn (bird) which leads to a common measure for beer (6-5)
Then the definition of 2 down is 5,3,6 (A cricket ground with toilets)
Then the thing which parallels 14 (what the sun does in the East) and 41, a bird and a frolic. You need 4( also a funeral) + 5( Batman's pal)
if you start an alphabetical list of your favourite alternatives to beer, it might go
A. _ _ _ ( also a word for odd) KEYWORD
B. _ _ _ ( also a word for trap 36DOWN
C. _ _ _ _ (opposite of starboard 27DOWN
D. _ _ _ _ _ ( scrumpy. 9Dn def = 5th match in a best of 5 series)
I think you end up with a botanical drawing