Explanation:

- Retrospect: This word is spelled correctly. It means looking back on or thinking about past events.

- Gaurmet: This word is spelled incorrectly. The correct spelling is "Gourmet," which refers to high-quality or specialty food and drink, or a person who enjoys such things.

- Magnanimous: This word is correctly spelled. It describes someone who is generous or forgiving, especially toward a rival or less powerful person.

- Clandestine: This is correctly spelled as well. It means something done in secrecy, often because it is illicit or unauthorized.

Therefore, the incorrectly spelled word is:

Gaurmet