Helping around inside brings calm (7)
I believe the answer is:
placate
'calm' is the definition.
(I know this)
'helping around inside' is the wordplay.
'helping' becomes 'plate'.
'around' becomes 'ca' (circa).
'inside' indicates putting letters inside.
'plate' going around 'ca' is 'PLACATE'.
'brings' is the link.
(Other definitions for placate that I've seen before include "Mollify, appease" , "Make calm, conciliate" , "Mollify, calm down" , "Calm, pacify, appease" , "Pale cat could pacify" .)