The nautical might of an AB? (3,5)
I believe the answer is:
sea power
'an ab?' is the definition.
The definition and answer can be both groups as well as being singular nouns.
Perhaps you can see a link between them that I can't see?
'the nautical might' is the wordplay.
'the nautical' becomes 'sea' (I can't explain this - if you can you should give a lot more credence to this answer).
'might' becomes 'power' (being mighty).
'sea'+'power'='SEA-POWER'
'of' is the link.
Can you help me to learn more?
(Other definitions for sea power that I've seen before include "Naval strength" , "threat, in the main" , "Ability to rule the waves?" .)