Everyman's beginning to get kiss, first to occur (5)
I believe the answer is:
exist
'occur' is the definition.
(I've seen this in another clue)
'everyman's beginning to get kiss first' is the wordplay.
'beginning to' indicates taking the first letters.
'get' means one lot of letters go next to another.
'kiss' becomes 'x' (X can represent a kiss).
'first' becomes 'ist' (ist resembles 1st).
The initial letter of 'everymans' is 'e'.
'e'+'x'+'ist'='EXIST'
'to' acts as a link.
(Other definitions for exist that I've seen before include "Have being or continue living" , "Be alive" , "Survive" , "Get a life!" , "Have objective reality" .)