Very fair, poor old Ben! (6)
I believe the answer is:
blonde
'very fair' is the definition.
'blonde' can be an answer for 'fair' (similar in meaning). I am not certain of the 'very' bit.
'poor old ben' is the wordplay.
'poor' is an anagram indicator.
'old'+'ben'='oldben'
'oldben' with letters rearranged gives 'BLONDE'.
Can you help me to learn more?
(Other definitions for blonde that I've seen before include "Of a woman, having fair hair (6)" , "Kind of fair girl" , "Pale-haired" , "Kind of girl that gentlemen are said to prefer" , "Flaxen" .)