Spray blue rinse all over the place (9)
I believe the answer is:
nebuliser
'spray' is the definition.
(I've seen this before)
'blue rinse all over the place' is the wordplay.
'all over the place' indicates anagramming the letters.
'blue'+'rinse'='bluerinse'
'bluerinse' is an anagram of 'NEBULISER'.
(Other definitions for nebuliser that I've seen before include "Drug delivery system" , "Spray - blue rinse (anag)" , "dispensed by this" , "Used to inhale the drug" , "Device for producing a fine spray, for inhaling a medicinal drug, say" .)