Wilder bird of prey losing power it produces (9)
I believe the answer is:
generator
'it produces' is the definition.
The definition suggests a singular noun which matches the answer.
'wilder bird of prey losing power' is the wordplay.
'wilder' becomes 'gene' (gene wilder).
'bird of prey' becomes 'raptor' (a raptor is a bird of prey).
'losing' is a deletion indicator.
'power' becomes 'p' (symbol in physics).
'raptor' with 'p' taken out is 'rator'.
'gene'+'rator'='GENERATOR'
Can you help me to learn more?
(Other definitions for generator that I've seen before include "Existing in name only" , "meant to be electrifying?" , "It gives power" , "Eg, dynamo" , "Electricity producer" .)