Battered, yon trimaran opts for this (3,4,2,1,5)
I believe the answer is:
any port in a storm
'this' is the definition.
I know nothing about this answer so I can't tell whether this works.
'battered yon trimaran opts' is the wordplay.
'battered' indicates an anagram.
'yon'+'trimaran'+'opts'='yontrimaranopts'
'yontrimaranopts' with letters rearranged gives 'ANY PORT IN A STORM'.
'for' is the link.
Can you help me to learn more?
(Other definitions for any port in a storm that I've seen before include "acceptable emergency solution" , "Emergency accommodation when the weather's bad" , "Beggars (if sailors) can't be choosers!" , "place for those in trouble?" , "accept help when in difficulty" .)