Convict conceals heart of such a devilish figure (7)
I believe the answer is:
lucifer
'a devilish figure' is the definition.
The answer and definition can be both man-made objects as well as being singular nouns.
Maybe you can see a link between them that I don't see?
'convict conceals heart of such' is the wordplay.
'convict' becomes 'lifer' (prisoner serving a life sentence).
'conceals' is an insertion indicator.
'heart of' means to look at the middle letters.
The middle of 'such' is 'uc'.
'lifer' going around 'uc' is 'LUCIFER'.
Can you help me to learn more?
(Other definitions for lucifer that I've seen before include "Venus" , "from the abyss?" , "Rising star" , "Satan, Son of the Morning" , "once a match for > Dickens" .)