Maybe burgle independent theatre, committing offence (7)
I believe the answer is:
intrude
'maybe burgle' is the definition.
I can't tell whether this definition defines the answer.
'independent theatre committing offence' is the wordplay.
'independent' becomes 'i'.
'theatre' becomes 'NT' (National Theatre).
'committing offence' becomes 'rude' (I am not sure about this - if you are sure you should believe this answer much more).
'i'+'nt'+'rude'='INTRUDE'
Can you help me to learn more?
(Other definitions for intrude that I've seen before include "Butt in, interfere" , "Break in" , "Join in without being invited or wanted" , "Come in uninvited" , "meddle" .)