The ones belonging to Thomas East (5)
I believe the answer is:
those
'thomas east' is the definition.
I don't know anything about this answer so I can't judge whether this works.
'the ones belonging' is the wordplay.
'the' becomes 't' (the is pronounced as a 't' sound in some dialects).
'ones belonging' becomes 'hose' (I am not sure about this - if you are sure you should believe this answer much more).
't'+'hose'='THOSE'
'to' is the link.
Can you help me to learn more?
(Other definitions for those that I've seen before include "Plural form of that" , "The (things) there" , "the more far out?" , "Nostalgic utterance" , "Ethos (anag.)" .)