Speaker's to give precious coat to fellowship (5)
I believe the answer is:
guild
'fellowship' is the definition.
(synonyms)
'speaker's to give precious coat' is the wordplay.
'speaker's to' becomes 'gui' (I can't explain this - if you can you should give a lot more credence to this answer).
'give' is a charade indicator (letters next to each other).
'precious' becomes 'loved' (similar in meaning).
'coat' suggests removing the centre (only the letters which coat the word are used).
'loved' with its centre taken out is 'ld'.
'gui'+'ld'='GUILD'
'to' acts as a link.
Can you help me to learn more?
(Other definitions for guild that I've seen before include "corporation" , "Alliance" , "Association of those with similar interests" , "Old trade association" , "Trade union" .)