Thought India deal almost complete (4)
I believe the answer is:
idea
'thought' is the definition.
(idea is a kind of thought)
'india deal almost complete' is the wordplay.
'india' becomes 'i' (phonetic alphabet: alpha, bravo, charlie etc.).
'almost complete' means to remove the last letter (most but not all of the word).
'deal' with its final letter taken away is 'dea'.
'i'+'dea'='IDEA'
(Other definitions for idea that I've seen before include "Creative spark" , "Brainwave" , "Mental impression" , "Plan" , "Inkling" .)