Red lorry has contents unloaded with care (8)
I believe the answer is:
gingerly
'with care' is the definition.
(I've seen this in another clue)
'red lorry has' is the wordplay.
'red' becomes 'ginger'.
'lorry has' becomes 'ly' (I can't explain this - if you can you should believe this answer much more).
'ginger'+'ly'='GINGERLY'
'contents unloaded' acts as a link.
I am not very happy about this link. Some or all of it may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for gingerly that I've seen before include "In a careful manner" , "(Approach) in a cautious manner" , "With extreme care and delicacy" , "Cautiously (as if in pain?)" , "Showing caution" .)