Cuppa in range (5)
I believe the answer is:
chain
'range' is the definition.
(synonyms)
'cuppa in' is the wordplay.
'cuppa' becomes 'cha'.
'cha'+'in'='CHAIN'
(Other definitions for chain that I've seen before include "restraint" , "One kind of mail" , "Succession" , "Tie" , "Series of connected links" .)