Urgent, Admiral, be prepared for a maybe dangerous place in the ocean (7,8)
I believe the answer is:
bermuda triangle
'a maybe dangerous place in the ocean' is the definition.
I don't know anything about this answer so I can't tell whether it can be defined by this definition.
'urgent admiral be prepared' is the wordplay.
'prepared' is an anagram indicator.
'urgent'+'admiral'+'be'='urgentadmiralbe'
'urgentadmiralbe' anagrammed gives 'BERMUDA TRIANGLE'.
'for' acts as a link.
Can you help me to learn more?
(Other definitions for bermuda triangle that I've seen before include "notorious danger area?" , "Area of mystery" , "mysterious place" , "Place where ships have been mysteriously lost" , "associated with disappearing craft?" .)