Engine burnt out absorbing current energy (7)
I believe the answer is:
turbine
'engine' is the definition.
(turbine is a kind of engine)
'burnt out absorbing current energy' is the wordplay.
'out' indicates an anagram (out can mean wrong or inaccurate).
'absorbing' is an insertion indicator.
'current' becomes 'i' (symbol for electric current).
'energy' becomes 'e' (physics symbol as in E=mc2).
'burnt' anagrammed gives 'turbn'.
'turbn' enclosing 'i' is 'turbin'.
'turbin'+'e'='TURBINE'
(Other definitions for turbine that I've seen before include "Rotary motor" , "Power-producing machine" , "Machine or motor for tribune" , "Fluid-driven motor" , "Rotary engine" .)