Cared about large woody plant (5)
I believe the answer is:
cedar
'large woody plant' is the definition.
The answer and definition can be both plants as well as being singular nouns.
Perhaps you can see a link between them that I don't see?
'cared about' is the wordplay.
'about' indicates an anagram.
'cared' with letters rearranged gives 'CEDAR'.
Can you help me to learn more?
(Other definitions for cedar that I've seen before include "Fragrant conifer" , "Cypress-like tree" , "Tree (Lebanese?)" , "Great hardwood tree associated with Lebanon" , "Tall coniferous tree" .)