Penny whistles for desserts with soft centre? (5)
I believe the answer is:
pipes
'penny whistles for desserts' is the definition.
I can't tell whether this defines the answer.
'with soft centre?' is the wordplay.
'with' is an insertion indicator.
'soft' becomes 'p' (musical abbreviation for 'piano').
'centre?' becomes 'pies' (I can't justify this - if you can you should believe this answer much more).
'p' put inside 'pies' is 'PIPES'.
Can you help me to learn more?
(Other definitions for pipes that I've seen before include "Wind instruments" , "Hollow cylindrical shapes" , "Tubes for fluids" , "they sound shrill at 8 [HIGHLAND GAMES]" , "Long tubes" .)