Theologian into drink, delivery initially confused (6)
I believe the answer is:
addled
'confused' is the definition.
(addling is a kind of confusing)
'theologian into drink delivery initially' is the wordplay.
'theologian' becomes 'dd' (Doctor of Divinity degree).
'into' is an insertion indicator.
'drink' becomes 'ale' (ale is a kind of drink**).
'initially' says to take the initial letters.
The initial letter of 'delivery' is 'd'.
'dd' going within 'ale' is 'addle'.
'addle'+'d'='ADDLED'
(Other definitions for addled that I've seen before include "Of egg, rotten and producing no chick" , "Rotten; muddled" , "mixed-up" , "Scatterbrained like bad egg" , "Lost" .)