Where driver might be new, did worry manifest? (9)
I believe the answer is:
incarnate
'manifest?' is the definition.
(thesaurus)
'where driver might be new did worry' is the wordplay.
I cannot really see how this works, but
'new' could be 'n' (common abbreviation eg NT for New Testament) and 'n' is present in the answer.
'did worry' could be 'ate' (eating is a kind of worrying) and 'ate' is located in the answer.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for incarnate that I've seen before include "Embodied in human form" , "Embodied in flesh like a spirit or devil" , "Represented in bodily form" , "in ultimate condition" , "Made real" .)