Girl meets boy — and ducks (6)
I believe the answer is:
evades
'ducks' is the definition.
('evade' can be a synonym of 'duck')
'girl meets boy' is the wordplay.
'girl' becomes 'eva' (girl's name).
'meets' is a charade indicator (letters next to each other).
'boy' becomes 'des' (short for Desmond).
'eva'+'des'='EVADES'
'and' acts as a link.
(Other definitions for evades that I've seen before include "Escapes, avoids" , "Dodges or equivocates" , "Dodges, say capture" , "Avoids by cleverness, maybe arrest" , "Shakes off" .)