Short talk with Irish president (5)
I believe the answer is:
chair
'president' is the definition.
(synonyms)
'short talk with irish' is the wordplay.
'short talk' becomes 'cha' (I've seen this in other clues).
'with' says to put letters next to each other.
'irish' becomes 'Ir' (abbreviation).
'cha'+'ir'='CHAIR'
(Other definitions for chair that I've seen before include "Senior academic post" , "academic office" , "Get seat" , "Item of furniture (which can be addressed!)" , "Seat for one person" .)