Musical talent seen in tea rooms (3)
I believe the answer is:
ear
'musical talent' is the definition.
(as in 'having an ear' for music)
'in tea rooms' is the wordplay.
'in' indicates the answer is hidden within the clue.
'EAR' is hidden in the letters of 'tea rooms'.
'seen' acts as a link.
(Other definitions for ear that I've seen before include "Heed" , "Lend one and listen" , "Place for a plug" , "Corn seed-holder" , "Musical ability" .)