Golf club with no parking, say (5)
I believe the answer is:
utter
'say' is the definition.
(to utter something is to speak or say it)
'golf club with no parking' is the wordplay.
'golf club' becomes 'putter' (type of golf club).
'with no' indicates named letters should be taken away.
'parking' becomes 'p' (abbreviation on road signs).
'putter' with 'p' taken away is 'UTTER'.
(Other definitions for utter that I've seen before include "Pure" , "Speak in absolute way" , "Speak, articulate" , "Speak; completely" , "Make sounds (but not necessarily words)" .)