Its fruits are not for the working classes (5)
I believe the answer is:
lotus
I'm afraid I can't even guess how this answer relates to the clue.
Can you help me to learn more?
(Other definitions for lotus that I've seen before include "Sacred symbol" , "Mythical plant inducing languor" , "In Greek mythology, a fruit which induces forgetfulness" , "Kind of cross-legged position for meditation" , "Mythical fruit including stste of dreaminess" .)