Mark - it would help if you put the number of letters for the clue. I happened to know this one from doing that Polymath.
To OntarioIce - apols, I didn't take on board that you were working blind without the number of letters. Your links are most helpful. I've found, incidentally, that a favourite South African snake for cryptic crossword setters is the boomslang. Regards.
Thanks pjwillcox
The thanks are for your kind remarks. No offence was taken by your query of my answer.
I don't have any decent puzzles to work on at all so enjoy taking part on this site.
Cheers. O-Ice