Tottenham Hotspur should have considered ... (7)
I believe the answer is:
thought
'considered' is the definition.
(I've seen this before)
'tottenham hotspur should' is the wordplay.
I cannot quite understand how this works, but
'should' could be 'ought' (synonyms) and 'ought' is present in the answer.
This may be the basis of the clue (or it may be nonsense).
'have' acts as a link.
Can you help me to learn more?
(Other definitions for thought that I've seen before include "Idea, opinion" , "Notion" , "just a trifle" , "Content of cognition" , "Philosopher must master this" .)