Suffer naval disruption getting stuck inside deluge (9)
I believe the answer is:
avalanche
'stuck inside deluge' is the definition.
'avalanche' can be an answer for 'deluge' (I've seen this in another clue). I am unsure of the 'stuck inside' bit.
'suffer naval disruption getting' is the wordplay.
'suffer' indicates an anagram (I've seen 'suffering' mean this).
'disruption' becomes 'ache' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'getting' means one lot of letters goes inside another.
'naval' anagrammed gives 'valan'.
'valan' placed into 'ache' is 'AVALANCHE'.
Can you help me to learn more?
(Other definitions for avalanche that I've seen before include "Rock-fall" , "great fall" , "Large fall of snow or rocks" , "Heavy fall of rock or snow from mountain" , "big fall" .)