I call round on, in the evening (7)
I believe the answer is:
ironing
'evening' is the definition.
The definition and answer can be both to do with contact as well as being present participle verbs.
Perhaps you can see an association between them that I don't see?
'i call round on' is the wordplay.
'call' becomes 'ring ' (synonyms).
'round' means one lot of letters goes inside another.
'ring' going around 'on' is 'roning'.
'i'+'roning'='IRONING'
'in the' acts as a link.
Can you help me to learn more?
(Other definitions for ironing that I've seen before include "Making clothes smooth" , "Household chore" , "Laundry work" , "Smoothing clothes, etc" , "Pressing and smoothing" .)