Head of college locks position for its senior staff (5)
I believe the answer is:
chair
'position for its senior staff' is the definition.
I can't judge whether this definition defines the answer.
'head of college locks' is the wordplay.
'head of' says to take the initial letters.
'locks' becomes 'hair' (I've seen this before).
The first letter of 'college' is 'c'.
'c'+'hair'='CHAIR'
Can you help me to learn more?
(Other definitions for chair that I've seen before include "Head of a university faculty or department" , "Get seat" , "A committee's most important seat" , "control meeting" , "Preside over - seat" .)