Searched roughly, carried out and dismissed (9)

I believe the answer is:
ransacked
'searched roughly' is the definition.
'ransacked' can be an answer for 'searched' (ransacking is a kind of searching). I am unsure of the 'roughly' bit.
'carried out and dismissed' is the wordplay.
'carried out' becomes 'ran' ('run' can be a synonym of 'carry'. I am not sure about the 'out' bit.).
'and' means one lot of letters go next to another.
'dismissed' becomes 'sacked' ('sack' can be a synonym of 'dismiss').
'ran'+'sacked'='RANSACKED'
Can you help me to learn more?
(Other definitions for ransacked that I've seen before include "rifle in the past" , "Rifled" , "Pillaged" , "Plundered" , "turned upside down?" .)
