In a desire to break the record, coming back even faster (8)

'faster' is the definition.
('speedy' can be similar in meaning to 'fast')

'in a desire to break the record coming back' is the wordplay.
'in' means one lot of letters goes inside another.
'to break' indicates anagramming the letters.
'the record' becomes 'EP' (abbreviation for extended play record).
'coming back' says the letters should be written backwards.
'ep' written backwards gives 'pe'.
'desire' anagrammed gives 'sedier'.
'sedier' placed around 'pe' is 'SPEEDIER'.

'even' acts as a link.
This may not be correct. It may be part of another bit of the clue.

Can you help me to learn more?