Species at this point forms social class (6)
I believe the answer is:
sphere
'social class' is the definition.
'sphere' can be an answer for 'class' (thesaurus). I am not certain of the 'social' bit.
'species at this point' is the wordplay.
'species' becomes 'sp' (I've seen this in other clues).
'at this point' becomes 'here' (here means in this place).
'sp'+'here'='SPHERE'
'forms' is the link.
Can you help me to learn more?
(Other definitions for sphere that I've seen before include "Ball shape" , "Orb or globe" , "Ball, orb" , "Round shape" , "Perfect round" .)