Some way out for the solver (3)
I believe the answer is:
you
'solver' is the definition.
(the person solving the clue!)
'some way out for' is the wordplay.
'some' indicates a hidden word (some of the parts of the word are used).
'YOU' is hidden within 'way out for'.
'the' acts as a link.
(Other definitions for you that I've seen before include "My solvers in general" , "Reader" , "Person speaker addresses" , "Second person pronoun" , "The solver" .)