Keep away from girl with poor grades? (5)
I believe the answer is:
evade
'keep away from' is the definition.
(I've seen this in another clue)
'girl with poor grades?' is the wordplay.
'girl' becomes 'eva' (girl's name).
'with' says to put letters next to each other.
'poor grades?' becomes 'de' (I've seen this in other clues).
'eva'+'de'='EVADE'
(Other definitions for evade that I've seen before include "Dodge, stay clear of" , "Artfully dodge" , "temptress conveying commercial message" , "Illegally escape (taxes)" , "Escape (esp. by guile)" .)