Nothing pleasant, alone in pen? (2,3)
I believe the answer is:
on ice
'alone in pen?' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'nothing pleasant' is the wordplay.
'nothing' becomes 'O' (looks like zero - 0).
'pleasant' becomes 'nice' (associated in meaning).
'o'+'nice'='ON ICE'
Can you help me to learn more?
(Other definitions for on ice that I've seen before include "delayed" , "Predatory insect" , "held back?" , "Kept in readiness" , "Ready to skate" .)