Haiti cops dressed in pale green (9)
I believe the answer is:
pistachio
'pale green' is the definition.
'pistachio' can be an answer for 'green' (I have seen 'light green' mean 'pistachio' so perhaps 'green' could also mean 'pistachio'). I'm unsure of the 'pale' bit.
'haiti cops dressed' is the wordplay.
'dressed' indicates an anagram ('dress' can mean 'prepare').
'haiti'+'cops'='haiticops'
'haiticops' anagrammed gives 'PISTACHIO'.
'in' is the link.
Can you help me to learn more?
(Other definitions for pistachio that I've seen before include "Nut - it is a chop (anag)" , "Edible nut" , "Yellowish-green" , "light green" , "Food" .)