Petition peer about marina's closing (4)
I believe the answer is:
pray
'petition' is the definition.
(thesaurus)
'peer about marina's closing' is the wordplay.
'peer' becomes 'pry'.
'about' is an insertion indicator.
'marina's closing' becomes 'a' (I am not sure about this - if you are sure you should believe this answer much more).
'pry' going around 'a' is 'PRAY'.
Can you help me to learn more?
(Other definitions for pray that I've seen before include "Beg" , "Make supplication (to a god)" , "follow religious practice" , "Please" , "Devoutly hope" .)