Add shot of drink, excited (3,2)
I believe the answer is:
tot up
'add' is the definition.
(synonyms)
'shot of drink excited' is the wordplay.
I cannot quite understand how this works, but
'shot' could be 'tot' (I've seen this in other clues) and 'tot' is found in the answer.
'excited' could be 'up' and 'up' is found in the answer.
No letters remain.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for tot up that I've seen before include "Count" , "Do summer job" , "Reckon" , "Determine the sum of" , "Add together (driving offences)" .)