Glad I could help, Quinol. I had to look it up - Dsomo is the female of the cross between a yak and a common horned cow. The spelling can also be zhomo or jomo.
Having just discovered the EV crosswords I found 1667 more fun than Spectator 2679. But I wonder if there are 2 answers to 40a, 'Special period for healthful particle in Islay.
Gourani, I've no longer got the puzzle, but I think I remember wondering about that! I decided that the version with I worked - Chambers didn't have the 'period of time' with a Y spelling.