Crossword Genius

Following trivial provocation, time's lost in training device (6,9)

Ross

I believe the answer is:

flight simulator

I'm a little stuck... Click here to teach me more about this clue!

'device' is the definition.
(flight simulator is a kind of device)

'following trivial provocation time's lost in training' is the wordplay.
I cannot really see how this works, but
'following' could be 'f' (used when citing page numbers etc) and 'f' is present in the answer.
'time's' could be 'ts' and 'ts' is present in the answer.
This explanation may well be incorrect...

Can you help me to learn more?

I've seen this clue in The Telegraph.
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