Crossword Genius

Controversial treatment said to put pressure on chest (8)

Ross

I believe the answer is:

pectoral

I'm a little stuck... Click here to teach me more about this clue!

'chest' is the definition.
(I've seen this before)

'controversial treatment said to put pressure' is the wordplay.
I cannot quite see how this works, but
'treatment' could be 'ect' (ECT is an example) and 'ect' is located in the answer.
'said' could be 'oral' (I've seen this before) and 'oral' is present in the answer.
'pressure' could be 'p' (abbreviation) and 'p' is found in the answer.
No letters remain.
This explanation may well be incorrect...

'on' acts as a link.

Can you help me to learn more?

(Other definitions for pectoral that I've seen before include "Alert cop about chest" , "sort of cross" , "Ornamental breastplate" , "Relating to the breast or chest" , "Of the chest or breast, like muscles" .)

I've seen this clue in The Times.
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