Two different scenarios:
1.- crusing at FL 350 over France. XXX proceed direct Pouly. Can you spell the point please XXX? input point on FMC , looks reasonable -> go that way. Does not look reasonable (track to follow or distance?) ask for confirmation and spelling again, clarify situation.
2.- Flying an approach approaching or bellow the MSA. XXX proceed direct Pouly. Look for the point in the STAR and APP plates. Confirm under radar control. If point not readily recognisable decline direct, ask for vectors. If vectors not available/ not under radar and IMC --> unable to comply following published procedure.