The lad needs transport for a chemical container (6)
I believe the answer is:
carboy
'container' is the definition.
(carboy is a kind of container)
'the lad needs transport for a chemical' is the wordplay.
I cannot really see how this works, but
'lad' could be 'boy' (I've seen this in another clue) and 'boy' is found within the answer.
'transport' could be 'car' (car is a method of transport) and 'car' is present in the answer.
This accounts for all the letters.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for carboy that I've seen before include "Large bottle for holding corrosive liquids" , "Large glass container" , "a lot of bottle?" , "Large round bottle in wicker casing" , "Large bottle in wicker basket" .)