Full of excitement as case prepared for holiday (6-6)
I believe the answer is:
action-packed
'full of excitement' is the definition.
(I've seen this before)
'case prepared for holiday' is the wordplay.
'case' becomes 'action' (both refer to legal proceedings).
'prepared for holiday' becomes 'packed' (I can't justify this - if you can you should give a lot more credence to this answer).
'action'+'packed'='ACTION-PACKED'
'as' acts as a link.
Can you help me to learn more?
(Other definitions for action-packed that I've seen before include "Full of excitement" , "Full of exciting activity" , "Full of thrills and spills" , "Filled with car chases, shoot-outs etc" .)