Side of a coin that shows the head (7)
I believe the answer is:
obverse
'side of a coin that shows the head' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for obverse that I've seen before include "Side of the coin containing the principal figure" , "Side of coin that shows the principal design" , "Penny may present such a face" , "Verbose about coin side" , "Serving as a counter-part" .)