Some parties win ground — as result of this in elections (5)
I believe the answer is:
swing
'result of this in elections' is the definition.
The answer and definition can be both to do with fundamental existence as well as being verbs in their base form.
Perhaps they are linked in a way I don't understand?
'some parties win ground' is the wordplay.
'some' says the answer is hidden in the clue (some of the parts of the word are used).
'SWING' can be found hidden inside 'parties win ground'.
'as' is the link.
Can you help me to learn more?
(Other definitions for swing that I've seen before include "Vacillate" , "Type of big-band jazz" , "Sway to and fro" , "Type of music" , "jazz music" .)