mum
"Radar" is a palindrome for a type of flower.
A mum is a flower that is also a palindrome.
A palindrome for relating to a city and citizenship could be "civic." This word is a palindrome and is often associated with cities and civic duties related to citizenship.
civic
solos
A palindrome for the past tense of the word "do" is "did."
civic
Civic
Bob
Bob
level
solos