The high point of a fling (5)
I believe the answer is:
pitch
I believe this is a triple definition!
'the high' is the first definition.
(thesaurus)
'point' is the second definition.
(thesaurus)
'of' is a link.
'a fling' is the third definition.
(I've seen this before)
(Other definitions for pitch that I've seen before include "Throw; tar" , "Hurl" , "Street seller's location" , "Tarry stuff for football field?" , "Throw - wicket - sports field" .)