Golfer aims for this standard (4)
I believe the answer is:
flag
This clue is a double definition.
'golfer aims for this' is the first definition.
(a golfer aims at a flag by a hole)
'standard' is the second definition.
(I've seen this before)
(Other definitions for flag that I've seen before include "Iris - paving slab" , "Draw attention to" , "appears to grow languid" , "Emblem - iris - wilt" , "Mark for attention" .)