Lift concrete taking exercise (6)
I believe the answer is:
repeal
'lift' is the definition.
('repeal' can be a synonym of 'lift')
'concrete taking exercise' is the wordplay.
'concrete' becomes 'real' ('real' can be similar in meaning to 'concrete').
'taking' indicates putting letters inside.
'exercise' becomes 'pe'.
'real' going around 'pe' is 'REPEAL'.
(Other definitions for repeal that I've seen before include "Cancel or nullify a law" , "set aside" , "reversal of act" , "Rescind or withdraw a law" , "Annul by legislative action" .)