“Wa-ātaynā Thamūda al-nāqata mubṣirah”
“We gave Thamūd the she-camel as a clear sign.” (al-Isrāʾ 17:59, excerpt)
“Mubṣirah” literally suggests enabling sight or being clear. The point is not that this camel alone had functional eyes. In context it is a conspicuous sign, expressible as an implied “clear sign” (āyah mubṣirah).
The modifier must be interpreted through the surrounding discussion of Thamūd and their miraculous sign, not as an arbitrary zoological description.
A qualified object may be recoverable from context; an expression can also exhibit a figurative relation between an object and the quality attached to it. Both aspects require careful interpretation.