Blended teas in infusion (6)
I believe the answer is:
tisane
'infusion' is the definition.
(I've seen this before)
'blended teas in' is the wordplay.
'blended' indicates an anagram.
'teas'+'in'='teasin'
'teasin' is an anagram of 'TISANE'.
(Other definitions for tisane that I've seen before include "brew" , "Infusion of e.g. dried or fresh flowers or leaves" , "Herb-tea" , "Herbal tea drink" , "Infusion (eg of herbs or flowers)" .)