Hateful to be overdrawn — one's recourse? (6)
I believe the answer is:
odious
'hateful' is the definition.
(similar in meaning)
'overdrawn one's recourse?' is the wordplay.
'overdrawn' becomes 'od' (abbreviation for overdrawn).
'one's recourse?' becomes 'ious' (I can't justify this - if you can you should give a lot more credence to this answer).
'od'+'ious'='ODIOUS'
'to be' acts as a link.
Can you help me to learn more?
(Other definitions for odious that I've seen before include "Hateful and disgusting" , "'Repugnant, foul (6)'" , "Hateful, really nasty" , "Detestable, greatly disliked" , "Ghastly" .)