Yes! About to grab parking spot (4)
I believe the answer is:
espy
'spot' is the definition.
('espy' can be a synonym of 'spot')
'yes about to grab parking' is the wordplay.
'about' is an anagram indicator.
'to grab' is an insertion indicator.
'parking' becomes 'p'.
'yes' anagrammed gives 'esy'.
'esy' placed around 'p' is 'ESPY'.
(Other definitions for espy that I've seen before include "Behold" , "Catch a glimpse of" , "Spot; observe" , "Pick out at a distance" , "Observe (arch.)" .)