Fish below ship going round each beach? (7)
I believe the answer is:
seaside
'beach?' is the definition.
(synonyms)
'fish below ship going round each' is the wordplay.
'fish' becomes 'ide' (type of fish).
'below' is a charade indicator (letters next to each other) (in a down clue, some letters go below others).
'ship' becomes 'SS' (prefix in ship names eg SS Great Britain).
'going round' is an insertion indicator (some letters go around others).
'each' becomes 'ea' (abbreviation).
'ss' placed around 'ea' is 'seas'.
'ide' put after 'seas' is 'SEASIDE'.
(Other definitions for seaside that I've seen before include "Popular resort area" , "By the briny" , "Shoreline" , "Ocean shore" , "Coastal region" .)