Lecturer worried to make contribution (6)
I believe the answer is:
donate
'to make contribution' is the definition.
I can't judge whether this definition defines the answer.
'lecturer worried' is the wordplay.
'lecturer' becomes 'don' (don can mean an academic).
'worried' becomes 'ate' (something worrying may eat someone up).
'don'+'ate'='DONATE'
Can you help me to learn more?
(Other definitions for donate that I've seen before include "Give (eg to charity)" , "Atoned (anag)" , "Contribute charitably" , "Give - present" , "Make a contribution" .)