Conception many find immaculate (5)
I believe the answer is:
ideal
'immaculate' is the definition.
(I've seen this before)
'conception many' is the wordplay.
'conception' becomes 'idea' (I've seen this before).
'many' becomes 'l' (**).
'idea'+'l'='IDEAL'
'find' acts as a link.
(Other definitions for ideal that I've seen before include "(the best one can get)" , "Nonpareil" , "Model of excellance" , "Embodying perfection" , "Coal-mining waste" .)