Expresses uncertainty, referring to technology used by deputy to meet objectives (9)

'expresses uncertainty referring' is the definition.
I don't know anything about this answer so I can't tell whether this works.

'technology used by deputy to meet objectives' is the wordplay.
'technology' becomes 'IT' (Information Technology).
'used by' is a charade indicator (letters next to each other).
'deputy' becomes 'dep'.
'to meet' means one lot of letters go next to another.
'objectives' becomes 'ends' (end can mean a goal or objective).
'it'+'dep'+'ends'='ITDEPENDS'

'to' is the link.

Can you help me to learn more?