Torture when teatowel's first dropped in sink and then on flap (9)
I believe the answer is:
bastinado
'torture' is the definition.
(I've seen this before)
'teatowel's first dropped in sink and then on flap' is the wordplay.
'teatowel's first' becomes 't' (ast letter of 'teatowel').
'dropped in' means one lot of letters goes inside another.
'sink' becomes 'basin' (I've seen this before).
'and then' means one lot of letters go next to another (I've seen this in other clues).
'on flap' becomes 'ado' (I've seen this before. I am not sure about the 'on' bit.).
't' going within 'basin' is 'bastin'.
'bastin'+'ado'='BASTINADO'
'when' acts as a link.
Can you help me to learn more?
(Other definitions for bastinado that I've seen before include "Punishment by caning soles" , "Torture by caning soles of feet" , "Punishment beating on the soles of the feet" .)