Senior found in a forest? (5)
I believe the answer is:
elder
'senior' is the definition.
(I know that senior can be written as elder)
I can't explain the rest of the clue.
Can you help me to learn more?
(Other definitions for elder that I've seen before include "Church leader; tree" , "Kind of tree or sage person" , "More senior in years" , "Wise guy" , "More ancient" .)