Upended apple Tango can contains something related (7)
I believe the answer is:
cognate
'related' is the definition.
(similar in meaning)
'upended apple tango can contains' is the wordplay.
'upended' says the letters should be written backwards (in a down clue, letters go up).
'contains' indicates the answer is hidden within the clue.
'etangoc' can be found hidden inside 'apple tango can'.
'etangoc' in reverse letter order is 'COGNATE'.
'something' acts as a link.
This may not be right. It may be part of another bit of the clue.
Can you help me to learn more?
(Other definitions for cognate that I've seen before include "Kindred, related" , "Related, connected" , "Related, having same source" , "Allied" , "from the same root" .)