Notorious Kelly family member has dined inside and tidied up (8)
I believe the answer is:
neatened
'tidied up' is the definition.
'neatened' can be an answer for 'tidied' ('neaten' can be a synonym of 'tidy'). I am unsure of the 'up' bit.
'notorious kelly family member has dined inside and' is the wordplay.
I cannot really see how this works, but
'kelly' could be 'ned' (outlaw Ned Kelly) and 'ned' is present in the answer.
'dined' could be 'ate' (I've seen this in another clue) and 'ate' is present in the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is located in the answer.
A single letter 'e' remains which might be clued in a way I don't understand.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for neatened that I've seen before include "Made tidy" , "put straight" , "Put in order" , "Straightened or tidied" , "Put to rights" .)