I enter, make a sign of greeting but give up (5)
I believe the answer is:
waive
'give up' is the definition.
(I know that give up can be written as waive)
'i enter make a sign of greeting' is the wordplay.
I cannot quite see how this works, but
'i' could be 'a' and 'a' is located in the answer.
'sign' could be 'v' (a V-sign a gesture made with two fingers) and 'v' is located in the answer.
The remaining letters 'wie' is a valid word which might be clued in a way I don't understand.
This explanation may well be incorrect...
'but' acts as a link.
Can you help me to learn more?
(Other definitions for waive that I've seen before include "Don't insist on" , "Refrain from insisting on rights" , "Give up" , "Refrain from insisting on right or privilege" , "Forgo right or claim" .)