The final release almost full and so busy (8)
I believe the answer is:
eventful
'so busy' is the definition.
'eventful' can be an answer for 'busy' (similar in meaning). I'm not certain of the 'so' bit.
'the final release almost full' is the wordplay.
'final' indicates one should take the final letters.
'release' becomes 'vent' (I've seen this in another clue).
'almost' means to remove the last letter (most of the word but not all of it).
The last letter of 'the' is 'e'.
'full' with its final letter taken off is 'ful'.
'e'+'vent'+'ful'='EVENTFUL'
'and' is the link.
Can you help me to learn more?
(Other definitions for eventful that I've seen before include "Containing many incidents" , "Full of incidents, momentous" , "Packed with incident, lively" , "Packed with action, lots happening" , "Busy, exciting (period)" .)