Perfect golf club short of parking (5)
I believe the answer is:
utter
'perfect' is the definition.
(synonyms)
'golf club short of parking' is the wordplay.
'golf club' becomes 'putter' (type of golf club).
'short of' suggests deleting specific letters.
'parking' becomes 'p' (abbreviation on road signs).
'putter' with 'p' taken away is 'UTTER'.
(Other definitions for utter that I've seen before include "Complete; absolute" , "Complete madman" , "Give tongue to" , "Absolutely" , "Circulate" .)