Lover on isle gives order (7)
I believe the answer is:
mandate
'order' is the definition.
(I've seen this before)
'lover on isle' is the wordplay.
'lover' becomes 'man' (male lover).
'on isle' becomes 'date' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'man'+'date'='MANDATE'
'gives' is the link.
Can you help me to learn more?
(Other definitions for mandate that I've seen before include "Written authority" , "Official command; commission" , "Authorisation to a politician" , "Give authority to" , "Authority given to perform certain task" .)