Make another judgement about girls going topless in front of son (8)
I believe the answer is:
Here is my best explanation:
'make another judgement' is the definition.
'girls going topless in front of son' is the wordplay.
'girls' becomes 'lasses' (lass is a kind of girl).
'going topless' means to remove the first letter.
'in' is an insertion indicator.
'front of son' becomes 'res' (I can't justify this - if you can you should give a lot more credence to this answer).
'lasses' with its first letter taken away is 'asses'.
'asses' put inside 'res' is 'REASSESS'.
'about' acts as a link.
(Other definitions for reassess that I've seen before include "Examine again", "judge again", "Rate afresh", "Appraise again", "Judge again", "think again", "Estimate value once more", "Again evaluate", "Newly evaluate" and "Further evaluate".)