Book, electronic, probing half of Suez Canal (7)
I believe the answer is:
ezekiel
'book' is the definition.
(I know that Ezekiel is a book)
'electronic probing half of suez canal' is the wordplay.
'electronic' becomes 'e' (as in e-mail or e-books).
'probing' is an insertion indicator (probe can mean to make a hole in).
'half of' suggests halving the letters.
'canal' becomes 'kiel' (I've seen this before).
'suez' with half the letters taken is 'ez'.
'ez'+'kiel'='ezkiel'
'e' placed within 'ezkiel' is 'EZEKIEL'.
(Other definitions for ezekiel that I've seen before include "Biblical prophet" , "Good book" , "OT book, prophet, priest" , "He forecast" , "Hebrew prophet" .)