Being jobless, one gets led astray (4)
I believe the answer is:
idle
'being jobless' is the definition.
(I've seen this before)
'one gets led astray' is the wordplay.
'one' becomes 'i' (Roman numeral).
'gets' is a charade indicator (letters next to each other).
'astray' indicates an anagram.
'led' with letters rearranged gives 'dle'.
'i'+'dle'='IDLE'
(Other definitions for idle that I've seen before include "Not used to work" , "Unoccupied (time); run (engine) slowly" , "not being engaged" , "Monty Python's Eric, b. 1943" , "'Lazy, not doing anything (4)'" .)