Computer program in expo curtailed name of old poet (6)
I believe the answer is:
sappho
'old poet' is the definition.
(ancient Greek poet)
'computer program in expo curtailed name of' is the wordplay.
I cannot quite see how this works, but
'program' could be 'app' (type of computer program) and 'app' is found in the answer.
'of' could be 'o' and 'o' is present in the answer.
The remaining letters 'sh' is a valid word which might be clued in a way I don't see.
This may be the basis of the clue (or it may be nonsense).
Can you help me to learn more?
(Other definitions for sappho that I've seen before include "Pa hops about Greek poet from Lesbos" , "Greek lyric poetess" , "Ancient Greek poet of Lesbos" , "Sixth century BC Greek poetess" , "Pa hops around the ancient Greek poetess" .)