Morally correct, as the laic could become (7)
I believe the answer is:
ethical
'morally correct' is the definition.
(I've seen this before)
'the laic could become' is the wordplay.
'could become' indicates anagramming the letters.
'the'+'laic'='thelaic'
'thelaic' is an anagram of 'ETHICAL'.
'as' acts as a link.
(Other definitions for ethical that I've seen before include "Relating to morals" , "Morally correct, in accordance with principles" , "Morally proper" , "Morally good or correct" , "Moral, principled" .)