14 down
Caused
pit
viper
to
shed
skin
one
day
(10)
Caused pit viper to shed skin one day (10)
hints
0
checks
0
hints
The definition is at the beginning of the clue.
How the clue works
A MOCCASIN is a type of pit viper; strip off its outer skin (the first and last letters) to leave OCCASI. Follow that with ONE and D (the abbreviation for day) to build OCCASIONED, which means Caused.