Explosive nitrates in model choo-choo? (5,3)
I believe the answer is:
train set
'model choo-choo?' is the definition.
I don't know anything about this answer so I can't tell whether this works.
'explosive nitrates' is the wordplay.
'explosive' indicates an anagram.
'nitrates' with letters rearranged gives 'TRAIN-SET'.
'in' is the link.
Can you help me to learn more?
(Other definitions for train set that I've seen before include "Toy with rail track" , "Strange treats in store for this model toy" , "Toy railway" , "Nitrates (anag) - Hornby product?" , "Layout with engines" .)