Shore power said to be explosive (8)
I believe the answer is:
dynamite
'be explosive' is the definition.
(I've seen this before)
'shore power said' is the wordplay.
'shore' becomes 'dyna' (I can't explain this - if you can you should believe this answer much more).
'power' becomes 'might' (synonyms).
'said' indicates a 'sounds like' (homophone) clue.
'might' is a homophone of 'mite'.
'dyna'+'mite'='DYNAMITE'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for dynamite that I've seen before include "dangerous stuff" , "May end it with explosive" , "Tiny dame (anag)" , "A1" , "Dainty me could be explosive" .)