Angry soldiers locking one rebel leader in tower (7)
I believe the answer is:
'tower' is the definition.
(I've seen this before)
'angry soldiers locking one rebel leader' is the wordplay.
'angry' becomes 'mad' (similar in meaning).
'soldiers' becomes 'OR' (Other Ranks).
'locking' indicates putting letters inside.
'one' becomes 'i' (Roman numeral).
'leader' says to take the initial letters.
The initial letter of 'rebel' is 'r'.
'mador' enclosing 'ir' is 'MIRADOR'.
'in' acts as a link.
(Another definition for mirador that I've seen is " tower".)