Assign work to a writer (7)
I believe the answer is:
ascribe
'assign work' is the definition.
'ascribe' can be an answer for 'assign' (synonyms). I am unsure of the 'work' bit.
'a writer' is the wordplay.
'writer' becomes 'scribe' (scribe is a kind of writer).
'a'+'scribe'='ASCRIBE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for ascribe that I've seen before include "'Attribute, assign (7)'" , "'Impute, assign (7)'" , "Attribute to specified source or cause" , "put down" , "Attribute or impute" .)