Make another judgement about girls going topless in front of son (8)
I believe the answer is:
reassess
'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.
Can you help me to learn more?
(Other definitions for reassess that I've seen before include "Examine again" , "Newly evaluate" , "Take stock" , "Make a further judgement" , "think again" .)