Reach solution about old liberal complaint (7)
I believe the answer is:
cholera
'complaint' is the definition.
(cholera is a kind of health problem)
'reach solution about old liberal' is the wordplay.
I cannot quite see how this works, but
'about' could be 'c' (circa) and 'c' is found within the answer.
'old' could be 'o' (abbreviation as in OT - Old Testament) and 'o' is present in the answer.
'liberal' could be 'l' (abbreviation) and 'l' is found in the answer.
The remaining letters 'hera' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for cholera that I've seen before include "Oh, Clare has highly infectious disease" , "Acute infection caused by contaminated water or food" , "Deadly, infectious disease" , "could kill you" , "Infectious and often fatal intestinal disease (7" .)