Reputed to be unhappy touring India (4)
I believe the answer is:
said
'reputed' is the definition.
(thesaurus)
'unhappy touring india' is the wordplay.
'unhappy' becomes 'sad' ('sad' can be a synonym of 'unhappy').
'touring' is an insertion indicator (touring can mean going round).
'india' becomes 'i' (phonetic alphabet: alpha, bravo, charlie etc.).
'sad' enclosing 'i' is 'SAID'.
'to be' acts as a link.
(Other definitions for said that I've seen before include "Rumoured" , "Mentioned" , "Spoke" , "Spoken" , "Port ____, important site in the Suez crisis" .)