Appear happy after sales talk (5,2)
I believe the answer is:
pitch up
'appear' is the definition.
I know nothing about this answer so I can't tell whether this works.
'happy after sales talk' is the wordplay.
'happy' becomes 'up' (I've seen this in other clues).
'after' means one lot of letters go next to another.
'sales talk' becomes 'pitch' (synonyms).
'up' after 'pitch' is 'PITCH UP'.
Can you help me to learn more?
(Other definitions for pitch up that I've seen before include "match cancelled in such circumstances?" , "Arrive" .)