Pretty close (4)
I believe the answer is:
near
'pretty close' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for near that I've seen before include "Close in time or place" , "Close; parsimonious" , "Close-fisted - approach" , "Not far distant in time or space etc." , "unlikely to spend much?" .)