Reach, accomplish (6)
I believe the answer is:
attain
This clue is a double definition.
'reach' is the first definition.
(I know that reach can be written as attain)
'accomplish' is the second definition.
(I know that accomplish can be written as attain)
(Other definitions for attain that I've seen before include "Manage to get" , "Arrive at or achieve" , "Achieve with effort" , "Reach, get there as with ambition" , "Succeed in reaching, achieve" .)