Cheers, get stuck into can, big guy (5)
I believe the answer is:
titan
'big guy' is the definition.
(I've seen this in another clue)
'cheers get stuck into' is the wordplay.
'cheers' becomes 'ta' (both can mean thank you).
'get' means one lot of letters goes inside another.
'stuck into' becomes 'tin' (I can't explain this - if you can you should believe this answer much more).
'ta' going inside 'tin' is 'TITAN'.
'can' is the link.
Can you help me to learn more?
(Other definitions for titan that I've seen before include "Atlas, say" , "Moon of Saturn visited by the Huygens probe" , "Person of great strength - moon of Saturn" , "Giant god of Greek myth" , "Giant -- rocket" .)