Beginning the climb to the point (7)
I believe the answer is:
'beginning' is the definition.
(something nascent is just beginning or starting)
'the climb to the point' is the wordplay.
'the climb' becomes 'ascent' ('ascent' can be a synonym of 'climb').
'to' says to put letters next to each other (I've seen this in other clues).
'the point' becomes 'N' (N is an example).
'ascent' after 'n' is 'NASCENT'.
(Other definitions for nascent that I've seen before include "Just beginning existence" , "awakening" , "starting to happen" , "in early stages" , "Freshly generated" .)