Hardly a full-blooded complaint (7)
I believe the answer is:
anaemia
'complaint' is the definition.
(a medical complaint)
'hardly a full-blooded' is the wordplay.
I cannot quite see how this works, but
'a' could be 'an' and 'an' is present in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for anaemia that I've seen before include "Pale condition" , "complaint of blood" , "Pallid condition" , "Result of iron deficiency" , "Promote" .)