Try and move round to hide key symptom of indigestion (9)

I believe the answer is:
heartburn
'symptom of indigestion' is the definition.
'heartburn' can be an answer for 'indigestion' (I've seen this before). I am unsure of the 'symptom of' bit.
'try and move round to hide key' is the wordplay.
'try' becomes 'hear' (as in to try someone in court or hear their case).
'and' says to put letters next to each other.
'move round' becomes 'turn' (I've seen this before).
'to hide' is an insertion indicator.
'key' becomes 'b' (eg B major, musical key).
'turn' enclosing 'b' is 'tburn'.
'hear'+'tburn'='HEARTBURN'
Can you help me to learn more?
(Other definitions for heartburn that I've seen before include "Disorder" , "Painful sensation" , "Acidic reflux" , "Hot sensation in lower chest from indigestion" , "Severe indigestion" .)
