Rake could make oddly neater edge (10)
I believe the answer is:
degenerate
'rake' is the definition.
(I've seen this before)
'oddly neater edge' is the wordplay.
'oddly' is an anagram indicator.
'neater'+'edge'='neateredge'
'neateredge' anagrammed gives 'DEGENERATE'.
'could make' is the link.
(Other definitions for degenerate that I've seen before include "Debased, degraded" , "In moral or physical decline" , "Showing evidence of decline" , "dishonourable" , "Sexual deviant - grow worse" .)