End of July, too soon for annual (6)
I believe the answer is:
yearly
'annual' is the definition.
('yearly' can be a synonym of 'annual')
'end of july too soon' is the wordplay.
'end of' indicates one should take the final letters.
'too soon' becomes 'early' (I've seen this before).
The final letter of 'july' is 'y'.
'y'+'early'='YEARLY'
'for' acts as a link.
(Other definitions for yearly that I've seen before include "Approximately every 52 weeks" , "Every 365 or 366 days" , "Annually" , "on a regular basis" , "Every tenth of a decade" .)