A blonde’s contrived affectionate address (3,4)
I believe the answer is:
old bean
'affectionate address' is the definition.
'old bean' can be an answer for 'address' (I've seen this before). I'm not certain of the 'affectionate' bit.
'a blonde's contrived' is the wordplay.
'contrived' is an anagram indicator.
'a'+'blonde'='ablonde'
'ablonde' anagrammed gives 'OLD BEAN'.
Can you help me to learn more?
(Other definitions for old bean that I've seen before include "Term of affection for a man" , "Affectionate form of address to a man" , "dated friend" , "dear fellow" , "Familiar way to address" .)