Tolerant, granted, accepting noise occasionally (7)
I believe the answer is:
lenient
'tolerant' is the definition.
(similar in meaning)
'granted accepting noise occasionally' is the wordplay.
'granted' becomes 'lent' (grant can mean to give or lend).
'accepting' means one lot of letters goes inside another (inserted letters are accepted).
'occasionally' means one should take alternating letters.
The alternate letters of 'noise' are 'nie'.
'lent' enclosing 'nie' is 'LENIENT'.
(Other definitions for lenient that I've seen before include "Mild and tolerant" , "Soft on the rules" , "Forgiving, gentle" , "Clement" , "Not severe in punishing" .)