Lower reputation of each flawed writer (7)
I believe the answer is:
cheapen
'lower reputation' is the definition.
'cheapen' can be an answer for 'lower' (I've seen this before). I am not sure about the 'reputation' bit.
'each flawed writer' is the wordplay.
'flawed' indicates anagramming the letters (I've seen this in other clues).
'writer' becomes 'pen' (something which writes).
'each' anagrammed gives 'chea'.
'chea'+'pen'='CHEAPEN'
'of' acts as a link.
Can you help me to learn more?
(Other definitions for cheapen that I've seen before include "lower" , "Tried" , "Degrade (something)" , "decrease in value" , "Demean - make less expensive" .)