The correspondence of U+A71D ⟨ꜝ⟩ to the IPA click on letter ⟨ǃ⟩ is Hence accidental. Coincidentally, U+A71E ⟨ꜞ⟩ serves because the superscript variant of your extIPA percussive consonant ⟨¡⟩; another percussive letters, ⟨ʬ⟩ and ⟨ʭ⟩, do not need superscript assistance in Unicode. ^ run free free and easy it’s a f