Announce that one is no longer an amateur? (8)
I believe the answer is:
proclaim
'announce' is the definition.
(I've seen this before)
'one is no longer an amateur?' is the wordplay.
I cannot really see how this works, but
'one' could be 'i' (Roman numeral) and 'i' is located in the answer.
'no' could be 'o' (resembles 0 - 'no' can mean 'zero') and 'o' is present in the answer.
'an' could be 'a' and 'a' is located in the answer.
'amateur?' could be 'l' (as in a learner driver with L-plates on their car) and 'l' is located in the answer.
This explanation may well be incorrect...
'that' acts as a link.
Can you help me to learn more?
(Other definitions for proclaim that I've seen before include "advertise" , "Speak out" , "Herald" , "Declare formally" , "Announce officially or declare publicly" .)