I thought I might finish this unaided at one stage but it is not to be.
Not too many to go. These should help.
22a Rallying cry evoking terrible noises. Eno?i? While looks like an anagram of noises to make enoisis that is something to do with the political union of Greece and Cyrus so nothing to do with rallying.
34a Bout of drinking on German water's enjoyed by shoppers Sp???s. Sprees fits but can't get the drinking or German water bit.
35d Plain German memorial stone geezer's half removed. ????e. Absolutely no idea.
Thanks