Young man's way with set control? (4)
I believe the answer is:
west
'young man's way' is the definition.
(reference to the phrase 'Go west, young man')
'with set control?' is the wordplay.
'with' becomes 'w' (abbreviation).
'control?' indicates an anagram (I've seen 'control' mean this).
'set' anagrammed gives 'est'.
'w'+'est'='WEST'
(Other definitions for west that I've seen before include "Dog (from Argyll?)" , "Occident" , "English county" , "One Direction" , "Mae -, US actress; W" .)