Desert plants have a role in Channel Islands (5)
I believe the answer is:
cacti
'desert plants' is the definition.
(I've seen this before)
'a role in channel islands' is the wordplay.
'a role' becomes 'act' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'in' means one lot of letters goes inside another.
'channel islands' becomes 'CI'.
'act' inserted into 'ci' is 'CACTI'.
'have' is the link.
Can you help me to learn more?
(Other definitions for cacti that I've seen before include "Tough plants" , "Prickly types" , "Plants native to arid regions" , "tuna, for example" , "Spiny succulent plants" .)
