Standard reached by dad at the end of the year (3)
I believe the answer is:
par
'standard' is the definition.
(standard of play in golf)
'dad at the end of the year' is the wordplay.
'dad' becomes 'pa' (both can mean one's father).
'at' is a charade indicator (letters next to each other).
'the end of the' indicates one should take the final letters.
The final letter of 'year' is 'r'.
'pa'+'r'='PAR'
'reached by' is the link.
(Other definitions for par that I've seen before include "Average standard" , "Rap to get even" , "Standard score for golfers" , "Average - equality" , "Expected number of strokes for hole (golf)" .)