Girl's round about the advertisement, miss (5)
I believe the answer is:
evade
'miss' is the definition.
(thesaurus)
'girl's round about the advertisement' is the wordplay.
'girl's round' becomes 'eve' (I can't justify this - if you can you should give a lot more credence to this answer).
'about' means one lot of letters goes inside another.
'the advertisement' becomes 'ad' ('ad' can be a synonym of 'advertisement').
'eve' enclosing 'ad' is 'EVADE'.
Can you help me to learn more?
(Other definitions for evade that I've seen before include "Dodge, stay clear of" , "Dodge, duck" , "Circumvent, dodge" , "Shun, escape" , "avoid answering" .)