Fruit variety with tremendous skin (7)
I believe the answer is:
oranges
'fruit' is the definition.
(oranges are a type of fruit)
'variety with tremendous skin' is the wordplay.
I cannot really understand how this works, but
'variety' could be 'range' (range can mean a wide variety) and 'range' is found within the answer.
The remaining letters 'os' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
Can you help me to learn more?
(Other definitions for oranges that I've seen before include "Gear son up for fruit" , "Citrus fruits" , "Mandarins, satsumas etc." , "See 8" , "a zesty lot" .)