Suppositions from Conservatives about male (8)
I believe the answer is:
theories
'suppositions' is the definition.
(I've seen this before)
'conservatives about male' is the wordplay.
'conservatives' becomes 'tories' (Tory is an example).
'about' indicates putting letters inside.
'male' becomes 'he'.
'tories' enclosing 'he' is 'THEORIES'.
'from' acts as a link.
(Other definitions for theories that I've seen before include "Conjectures" , "Ideas or suppositions" , "Explanatory suppositions" , "Hypotheses, possibilities" , "Abstract principles" .)