Say working men must lead state (6)
I believe the answer is:
oregon
'state' is the definition.
(Oregon is an example)
'say working men must lead' is the wordplay.
'say' becomes 'eg' (short for 'exempli gratia', 'for example' in Latin).
'working' becomes 'on' (on can mean working or activated).
'men' becomes 'OR' (military abbreviation for Other Ranks).
'must lead' says to put letters next to each other (some letters must go in front of others).
'eg'+'on'='egon'
'egon' put after 'or' is 'OREGON'.
(Other definitions for oregon that I've seen before include "Portland's state" , "area of the US" , "Gooner (anag) - US state" , "Old trail led here" , "area of America" .)