I got into bed so intolerant (7)
I believe the answer is:
bigoted
'intolerant' is the definition.
(similar in meaning)
'i got into bed' is the wordplay.
'into' means one lot of letters goes inside another.
'i'+'got'='igot'
'igot' going within 'bed' is 'BIGOTED'.
'so' acts as a link.
(Other definitions for bigoted that I've seen before include "I go into debt, being prejudiced" , "Illiberal" , "Dogmatic" , "Refusing to listen to reason" , "Obstinate" .)