Tree the solver talked of? (3)
I believe the answer is:
yew
'tree' is the definition.
(yew is a kind of tree)
'the solver talked of?' is the wordplay.
'the solver' becomes 'you' (the person solving the crossword).
'talked of?' indicates a 'sounds like' (homophone) clue.
'you' sounds like 'YEW'.
(Other definitions for yew that I've seen before include "Wood for archers" , "Leaving body" , "Evergreen tree with dark needles and red berries" , "This tree grows in churchyard" , "'Evergreen tree, reddish-brown wood (3)'" .)