Stood for action holding weight lifted (7)
I believe the answer is:
denoted
'stood for' is the definition.
'action holding weight lifted' is the wordplay.
'action' becomes 'deed' (deed is a kind of action).
'holding' indicates putting letters inside.
'weight' becomes 'ton' (ton is a kind of weight**).
'lifted' says the letters should be written in reverse (going up in down clue).
'deed' going around 'ton' is 'detoned'.
'detoned' written backwards gives 'DENOTED'.
(Other definitions for denoted that I've seen before include "Indicated or meant" , "Signified" .)