Addicted and extremely skint, manage to get joints with difficulty (6,3)
I believe the answer is:
strung out
'addicted' is the definition.
(similar in meaning)
'extremely skint manage to get joints with difficulty' is the wordplay.
'extremely' means to remove the middle letters.
'manage' becomes 'run' (I've seen this before).
'to get' says to put letters next to each other.
'joints with difficulty' becomes 'gout' (disease causing pain in joints).
'skint' with its middle taken out is 'st'.
'st'+'run'+'gout'='STRUNG-OUT'
'and' acts as a link.
(Other definitions for strung out that I've seen before include "Keep well apart" , "prolonged" , "weak as a result of drug addiction" , "Nervous" , "on drugs" .)