Like some wine yours truly had talked of, showing no emotion (3-4)
I believe the answer is:
dry-eyed
'showing no emotion' is the definition.
(not shedding tears)
'like some wine yours truly had talked of' is the wordplay.
'like some wine' becomes 'dry' (wine may be dry).
'yours truly had' becomes 'I'd' ('I had', referring to the crossword setter).
'talked of' indicates a 'sounds like' (homophone) clue.
'id' is a homophone of 'eyed'.
'dry'+'eyed'='DRY-EYED'
(Other definitions for dry-eyed that I've seen before include "Tearless" , "Without a tear" , "Not crying" , "Unmoved" .)