Point made by alien in Irish parliament (6)
I believe the answer is:
detail
'point' is the definition.
(I know that point can be written as detail)
'alien in irish parliament' is the wordplay.
'alien' becomes 'et' (extra terrestrial).
'in' means one lot of letters goes inside another.
'irish parliament' becomes 'dail' (I've seen this before).
'et' placed within 'dail' is 'DETAIL'.
'made by' acts as a link.
(Other definitions for detail that I've seen before include "Factor" , "A small or subordinate particular" , "Individual fact or feature, may be unimportant" , "Lead it (anag)" , "Enumerate or itemise" .)