14a. Person playing a jazz percussion instrument? (v---s-) 38a. To be performed slowly, musical instruction? (l-n-o) 9d. Computer program which removes glitches? (d---g). I thought this was defrag but...
4a: Sort of number obtained by multiplying a number by itself(6): ???a?e
5d: Part of a naval vessel for official or ceremonial use(11): ??a?t?r?e?k
22a: Entirely, completely(Latin)(2,4): i? t?t?...
40 across 'A town in the northeast of england on the North Sea' ? 5 letters --y-h? also 14across 'name given to a meteor shower recurring at 33 year intervals'? 6 letters l-o-i-? thanks in advance....