Eccentric freak caught by mean spook (4,6)
I believe the answer is:
take fright
'spook' is the definition.
I know nothing about this answer so I can't tell whether this works.
'eccentric freak caught by mean' is the wordplay.
'eccentric' is an anagram indicator.
'caught by' means one lot of letters goes inside another.
'mean' becomes 'tight' (both can mean miserly).
'freak' with letters rearranged gives 'akefr'.
'akefr' put inside 'tight' is 'TAKE FRIGHT'.
Can you help me to learn more?
(Other definitions for take fright that I've seen before include "Suddenly feel fearful" , "Become afraid" .)