Engine starts to overheat dangerously when modified with a turbo (8)
I believe the answer is:
outboard
'engine starts to overheat dangerously when modified' is the definition.
I can't tell whether this defines the answer.
'a turbo' is the wordplay.
I cannot really see how this works, but
'a' is present in the answer.
an anagram of 'turbo' is 'utbor' which is within the remaining letters.
The remaining letters 'od' is a valid word which might be clued in a way I don't see.
This may be the basis of clue (or it may be nonsense).
'with' acts as a link.
Can you help me to learn more?
(Other definitions for outboard that I've seen before include "Engine attached to boat" , "Sort of motor" , "Small boat's motor" , "Detachable small boat motor" , "Engine mounted at the stern of a small boat" .)