Churchyard tree the solver talked of (3)
I believe the answer is:
yew
'churchyard tree' is the definition.
(I've seen this before)
'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' is a homophone of 'YEW'.
(Other definitions for yew that I've seen before include "Evergreen tree with narrow dark-green leaves and red berries" , "Evergreen tree with dark needles and red berries" , "feature of many graveyards" , "Evergreen tree with dark leaves and red berries" , "Longbow wood" .)