Well done Ari. Spot-on for 1, 4, 5. No to the "Americanisms". It's simply a word used in N America (according to the accepted distionaries). Personally, I would not restrict the word.
Tried to find something beginning with ACE for 4, but could only think of acetic (and didn't think tic worked for minute- though you may have vinegary jams for all I know). :)
Hi Rambler. Thanks for taking part. Yes Phillip, it's DOVE. Well done!
No. 3 is quite a difficult one to work out without a few letters (later). Don't think of 'jam' as the sweet sticky stuff. Methinks I'll leave it till 1730, then put in a few letters and THEN retire to my 7-course din-din.