Power wielded by very harsh foreign correspondent (3,3)
I believe the answer is:
pen pal
'foreign correspondent' is the definition.
(a pen pal might be from another country)
'power wielded by very harsh' is the wordplay.
I cannot quite understand how this works, but
'power' could be 'pe' (P.E. is an example) and 'pe' is found in the answer.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for pen pal that I've seen before include "foreign correspondent" , "Friend who communicates in letters" , "A friendly correspondent" , "Friend you know only through correspondence" , "A friend who communicates through correspondence" .)