Keep away from a woman who's semi-nude (5)
I believe the answer is:
evade
'keep away from' is the definition.
(I've seen this in another clue)
'a woman who's semi-nude' is the wordplay.
'a woman' becomes 'Eva' (woman's name).
'who's semi-nude' becomes 'de' (I can't explain this - if you can you should give a lot more credence to this answer).
'eva'+'de'='EVADE'
Can you help me to learn more?
(Other definitions for evade that I've seen before include "Dodge, keep clear of" , "Escape (something)" , "Avoid, get out of" , "Illegally escape (taxes)" , "Dodge, elude" .)