Northern prison officer turned up, drafted again (7)
I believe the answer is:
redrawn
'up drafted again' is the definition.
I can't tell whether this defines the answer.
'northern prison officer turned' is the wordplay.
'northern' becomes 'n' (abbreviation e.g. N. Ireland).
'prison officer' becomes 'warder' (I've seen this before).
'turned' shows that the letters should be reversed in order.
'n'+'warder'='nwarder'
'nwarder' written backwards gives 'REDRAWN'.
Can you help me to learn more?
(Other definitions for redrawn that I've seen before include "Depicted afresh" , "outlined again" , "Delineated anew" , "Plan may be updated" , "sketched anew" .)