Spray water on breeches? (4)
I believe the answer is:
hose
This clue could be a double definition.
'spray' is the first definition.
(to spray or hose with water)
'water on breeches?' is the second definition.
'hose' can be an answer for 'water' (water a flowerbed say). I am not certain of the 'on breeches?' bit.
Can you help me to learn more?
(Other definitions for hose that I've seen before include "Flexible tube for liquid" , "Stockings; drench" , "Flexible pipe for liquid" , "Stockings, etc." , "Socks and stockings" .)