Sloth the German found upside down shown on telly (5)
I believe the answer is:
aired
'shown on telly' is the definition.
(to air is to be broadcast on TV)
'sloth the german found upside down' is the wordplay.
'sloth' becomes 'ai' (ai is a kind of sloth).
'the german found upside down' becomes 'red' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'ai'+'red'='AIRED'
Can you help me to learn more?
(Other definitions for aired that I've seen before include "Ventilated in the outdoors?" , "Exposed for drying" , "Expressed publicly" , "Made public" , "Vented to or exposed to breeze" .)