Too fine after first of August (2,4)
I believe the answer is:
'too' is the definition.
'fine after first of august' is the wordplay.
'fine' becomes 'swell' (I've seen this before).
'after' says to put letters next to each other.
'first of august' becomes 'a' (1st letter of 'august').
'swell' put after 'a' is 'AS WELL'.
(Other definitions for as well that I've seen before include "To boot" , "Also, additionally" , "A swell sort of addition" , "Appropriate" , "on top" .)