Speak after bartender initially identifies one who spills a lot? (13)
I believe the answer is:
butterfingers
'one who spills a lot?' is the definition.
(butterfingers can mean a clumsy person)
'speak after bartender initially identifies' is the wordplay.
'speak' becomes 'utter' (synonyms).
'after' is a charade indicator (letters next to each other).
'initially' suggests taking the first letters.
'identifies' becomes 'fingers'.
The first letter of 'bartender' is 'b'.
'utter' put after 'b' is 'butter'.
'butter'+'fingers'='BUTTERFINGERS'
(Other definitions for butterfingers that I've seen before include "Person continually dropping things" , "One who fails to hold a catch" , "Clumsy person who drops things" , "one who spills a lot" , "Hopeless catcher" .)