Thought about limit with capital protection (8)
I believe the answer is:
helmeted
'thought about limit' is the definition.
The answer and definition are different parts of speech. However, past participle verbs and adjectives can sometimes mean the same thing.
'capital protection' is the wordplay.
I cannot quite see how this works, but
'protection' could be 'helmet' (helmet is a kind of protection) and 'helmet' is located in the answer.
The remaining letters 'ed' is a valid word which might be clued in a way I don't understand.
This may be the basis of clue (or it may be nonsense).
'with' is the link.
Can you help me to learn more?
(Other definitions for helmeted that I've seen before include "Wearing a protective hat" , "Having head protection" .)