..............oh yes, and the 1st letter of the 2nd word in 6a is the same as the 1st letter of 34a! Now it should be easy (if you haven't got it already) !!!
Thank you greedy kite and Malone . My solution is in the post. Alas several years of entry has produced no success - are larger envelopes the solution? Fortunately solving the puzzles bring it's reward.
I just send a normal sized cheapo brown envelope and have had 1st place twice and runner up twice in 5 yrs of trying. It will be your turn soon truron!