Drive shown by old boy in Hertfordshire town producing theatrical costumes (8)
I believe the answer is:
wardrobe
'costumes' is the definition.
'drive shown by old boy in hertfordshire town producing theatrical' is the wordplay.
I cannot really understand how this works, but
'drive' could be 'dr' (abbreviation used in road names) and 'dr' is present in the answer.
'old' could be 'o' (common abbreviation eg in OE for Old English) and 'o' is present in the answer.
'boy' could be 'b' (abbreviation used in schools) and 'b' is present in the answer.
The remaining letters 'ware' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for wardrobe that I've seen before include "Tall piece of furniture" , "Cabinet" , "Cupboard for hanging clothes" , "Tall cupboard" , "A theatre company's stock of costumes" .)