What could be generated by working rickety engine (7,6)
I believe the answer is:
kinetic energy
'what could be generated' is the definition.
I can't judge whether this definition defines the answer.
'working rickety engine' is the wordplay.
'working' is an anagram indicator.
'rickety'+'engine'='ricketyengine'
'ricketyengine' anagrammed gives 'KINETIC ENERGY'.
'by' is the link.
Can you help me to learn more?
(Other definitions for kinetic energy that I've seen before include "Power inherent in a moving object" , "capacity to do work, when moving" , "Force in a moving body" , "Force possessed by a body by virtue of its motion" .)