Expert on current problems (11)
I believe the answer is:
electrician
'expert' is the definition.
The answer and definition can be both people as well as being singular nouns.
Maybe you can see an association between them that I don't see?
'current problems' is the wordplay.
I cannot quite understand how this works, but
'current' could be 'electric' (synonyms) and 'electric' is found in the answer.
The remaining letters 'ian' is a valid word which might be clued in a way I don't see.
This explanation may well be incorrect...
'on' is the link.
Can you help me to learn more?
(Other definitions for electrician that I've seen before include "One who might install mains wiring" , "Installer of wiring, etc" , "One wiring house" , "Sparks (informal)" , "One who might wire a house" .)