First to get over splintered railing (8)
I believe the answer is:
original
'first' is the definition.
('original' is associated in meaning with 'first')
'get over splintered railing' is the wordplay.
'get' is a charade indicator (letters next to each other).
'over' becomes 'o' (cricket abbreviation**).
'splintered' indicates anagramming the letters.
'railing' is an anagram of 'riginal'.
'o' next to 'riginal' is 'ORIGINAL'.
'to' is the link.
(Other definitions for original that I've seen before include "Person of marked individuality" , "Archetypal" , "Eccentric" , "Novel - archetype" , "derivation" .)