Look and find out; I found:
Dagger.
The letters of dagger can be rearranged to spell the word ragged. The next possible longest words are gaged, grade and raged.
I bought a dagger.
i can think of a six letter word tho sorry: dagger
Interest. If you require the answer for a magazine puzzle with the words "and dagger" - the answer would be cloak.
All these words are modifiers of the word knife. While dagger and switchblade are stand alone words for knife, all these are designations of a cutting knife.
knife,
Inside is one word.
The murder, distracted after hearing a noise, dropped the dagger and ran away.
Daca
YES!!! Inside is a compound word, because both 'in' and 'side' can act as separate words.
The word inside has two syllables.