Prophet finding canal after second half of freeze (7)
I believe the answer is:
ezekiel
'prophet' is the definition.
(I know that Ezekiel is a prophet)
'canal after second half of freeze' is the wordplay.
'canal' becomes 'kiel' (I've seen this before).
'after' means one lot of letters go next to another.
'second half of' suggests halving the letters (the back or second half of the word).
'freeze' with half the letters taken is 'eze'.
'kiel' after 'eze' is 'EZEKIEL'.
'finding' acts as a link.
(Other definitions for ezekiel that I've seen before include "Biblical prophet" , "Eponymous OT prophet" , "Hebrew prophet" , "Book of the Old Testament" , "OT book, prophet, priest" .)