Tea popular in a number of cafes, perhaps (5)
I believe the answer is:
chain
'a number of cafes perhaps' is the definition.
I can't judge whether this definition defines the answer.
'tea popular' is the wordplay.
'tea' becomes 'cha' (cha is a type of tea).
'popular' becomes 'in' ('in' can mean trendy).
'cha'+'in'='CHAIN'
'in' is the link.
Can you help me to learn more?
(Other definitions for chain that I've seen before include "Rope of metal links" , "trading group" , "lots of shops?" , "series of hotels" , "number of shops" .)