An expert press agent held to have a cure for everything (7)
I believe the answer is:
panacea
'cure for everything' is the definition.
(I've seen this before)
'an expert press agent held to have a' is the wordplay.
I cannot quite see how this works, but
'an' could be 'a' and 'a' is found in the answer.
'expert' could be 'ace' (ace can informally mean very good) and 'ace' is found in the answer.
'a' is found in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for panacea that I've seen before include "Universal cure" , "Solution to all difficulties" , "sovereign remedy" , "that can make anything better" , "A cure for everything" .)