Aspiring woman to move quickly, reversing large lorry (6,4)

'large lorry' is the definition.
Although both the answer and definition are singular nouns, I can't see how one could define the other.

'aspiring woman to move quickly reversing' is the wordplay.
I cannot really understand how this works, but
'woman' could be 'girl' (girl is a kind of woman) and 'girl' is found within the answer.
'move' could be 'career' (careering is a kind of moving) and 'career' is located in the answer.
This accounts for all the letters.
This explanation may well be incorrect...

Can you help me to learn more?