。
I want a clear answer.
Literal
Clear reply [subject-が] want.
欲しい is an い-adjective meaning 'wanted/desired' — not a verb. Its object takes が, not を. 'I want X' = 'Xがほしい.' Same pattern as other adjective-like predicates (好き, 嫌い, 分かる). Crisp and direct.