What does the cryptic crossword clue "Eradicate source of nationalism potentially? (10)" mean?

The definition is "Eradicate". The wordplay uses a deletion. anagram of ERADICATE N = DERACINATE; definition: "Eradicate" The answer is DERACINATE.

Eradicate source of nationalism potentially? (10)

Guardian Cryptic #29335 | 24 Across | 2024-03-20 flower