Shabby cinema to furnish around spring (7)
I believe the answer is:
fleapit
'shabby cinema' is the definition.
(I've seen this before)
'furnish around spring' is the wordplay.
'furnish' becomes 'fit' (fitting is a kind of furnishing).
'around' indicates putting letters inside.
'spring' becomes 'leap' ('leap' can be a synonym of 'spring').
'fit' enclosing 'leap' is 'FLEAPIT'.
'to' acts as a link.
(Other definitions for fleapit that I've seen before include "Run-down place for pictures" , "Run-down cinema" , "dive?" , "jumper" , "Shabby old cinema" .)