Asian hybrid rat lives in empty launch (8)

'asian hybrid' is the definition.
The definition suggests an adjective which matches the answer.

'rat lives in empty launch' is the wordplay.
'rat' becomes 'sing' (both can mean to inform on someone).
'lives' becomes 'is' ('be' can be a synonym of 'live').
'in' indicates putting letters inside.
'empty' says to hollow out the word (remove centre letters).
'launch' with its middle removed is 'lh'.
'is' going within 'lh' is 'lish'.
'sing'+'lish'='SINGLISH'

Can you help me to learn more?