Stress-free, crazy learner expelled ingesting ecstasy and speed (10)

'stress-free crazy learner expelled ingesting' is the definition.
I can't tell whether this defines the answer.

'ecstasy and speed' is the wordplay.
I cannot quite see how this works, but
'ecstasy' could be 'e' (informal term for the drug) and 'e' is found within the answer.
'and' could be 'n' (common abbreviation for 'and') and 'n' is present in the answer.
'speed' could be 'mph' (abbreviation for miles per hour) and 'mph' is located in the answer.
This explanation may well be incorrect...

Can you help me to learn more?