Leisure centre has accepted poetry pieces on Jack Cade (9,6)
I believe the answer is:
amusement arcade
'leisure centre' is the definition.
The definition suggests a singular noun which matches the answer.
'accepted poetry pieces on jack cade' is the wordplay.
'accepted poetry' becomes 'amuse' (I can't justify this - if you can you should believe this answer much more).
'pieces' becomes 'men' (man can mean a chess piece).
'on' is a charade indicator (letters next to each other).
'jack' becomes 'tar' (both are informal terms for sailor).
'amuse'+'men'+'tar'+'cade'='AMUSEMENT ARCADE'
'has' acts as a link.
Can you help me to learn more?
(Other definitions for amusement arcade that I've seen before include "gambling joint" , "gambling haunt" , "Where to find games machines" , "kids might have fun here" .)