Depended on lines to express craving (feeling after One Too Many Mornings ) (6)
I believe the answer is:
hungry
'craving feeling after one too many mornings' is the definition.
(reference to One Too Many Mornings by Bob Dylan)
'depended on lines' is the wordplay.
'depended' becomes 'hung' (to depend is to hang).
'on' is a charade indicator (letters next to each other).
'lines' becomes 'ry' (abbreviation for railway).
'hung'+'ry'='HUNGRY'
'to express' acts as a link.
(Other definitions for hungry that I've seen before include "Empty" , "Keen" , "Needing to be fed" , "Needing food" , "In need of nourishment" .)