Greek writer a model brought over (5)
I believe the answer is:
aesop
'greek writer' is the definition.
(I've seen this before)
'a model brought over' is the wordplay.
'model' becomes 'pose' ('pose' can be a synonym of 'model'**).
'brought over' shows that the letters should be reversed in order.
'pose' backwards is 'esop'.
'a'+'esop'='AESOP'
(Other definitions for aesop that I've seen before include "Greek fable writer" , "Ancient Greek author of moral tales" , "his writings were fabulous" , "Greek storyteller" , "Fabulous writer" .)