Something to play when there's little room for love (5)
I believe the answer is:
cello
'something to play when there's little' is the definition.
I can't judge whether this defines the answer.
'room for love' is the wordplay.
'room' becomes 'cell' (cell is a kind of room).
'for' means one lot of letters go next to another.
'love' becomes 'o' (love means zero in tennis).
'cell'+'o'='CELLO'
Can you help me to learn more?
(Other definitions for cello that I've seen before include "Instrument in the violin family" , "Orchestral instrument played between the legs" , "Lloyd Webber's instrument" , "Bass stringed instrument" , "Viola's bigger brother?" .)