Obvious Romeo uncovered nice ornamented belt (7)
I believe the answer is:
baldric
'ornamented belt' is the definition.
'baldric' can be an answer for 'belt' (baldric is a kind of belt). I'm not sure about the 'ornamented' bit.
'obvious romeo uncovered nice' is the wordplay.
'obvious' becomes 'bald'.
'romeo' becomes 'r' (phonetic alphabet: alpha, bravo, charlie etc.).
'uncovered' indicates the central letters.
The middle letters of 'nice' are 'ic'.
'bald'+'r'+'ic'='BALDRIC'
Can you help me to learn more?
(Other definitions for baldric that I've seen before include "Sword belt" , "Edmund's servant" , "Sword-belt" , "Carrier for weapon" , "Strapping swordsman carried" .)