Fast-moving engineer can deck patio (6-6)
I believe the answer is:
action-packed
'fast-moving' is the definition.
I can't judge whether this defines the answer.
'engineer can deck patio' is the wordplay.
'engineer' is an anagram indicator.
'can'+'deck'+'patio'='candeckpatio'
'candeckpatio' with letters rearranged gives 'ACTION-PACKED'.
Can you help me to learn more?
(Other definitions for action-packed that I've seen before include "Full of thrills and spills" , "Full of excitement" , "Full of exciting activity" , "Filled with car chases, shoot-outs etc" .)