Deliver golf club without its head (5)
I believe the answer is:
utter
'deliver' is the definition.
(thesaurus)
'golf club without its head' is the wordplay.
'golf club' becomes 'putter' (type of golf club).
'without its head' means to remove the first letter.
'putter' with its initial letter taken away is 'UTTER'.
(Other definitions for utter that I've seen before include "Absolutely" , "Express in words" , "Give voice" , "Speak; completely" , "Complete madman" .)