Blonde head provides equality (8)
I believe the answer is:
fairness
'equality' is the definition.
(I've seen this before)
'blonde head' is the wordplay.
'blonde' becomes 'fair' (similar in meaning).
'head' becomes 'ness' (ness is a headland).
'fair'+'ness'='FAIRNESS'
'provides' acts as a link.
(Other definitions for fairness that I've seen before include "the fine, dry state of the weather" , "Beauty - justice" , "Equity, justice" , "Equality" , "Impartiality, justice" .)