Endeavours to eke out on board (5)
I believe the answer is:
seeks
'endeavours' is the definition.
The definition and answer can be both to do with social activities as well as being verbs in their -s form.
Perhaps they are linked in a way I don't understand?
'eke out on board' is the wordplay.
'out' indicates anagramming the letters (out can mean wrong or inaccurate).
'on' indicates putting letters inside.
'board' becomes 'ss' (I am not sure about this - if you are sure you should give a lot more credence to this answer).
'eke' anagrammed gives 'eek'.
'eek' inserted inside 'ss' is 'SEEKS'.
'to' acts as a link.
Can you help me to learn more?
(Other definitions for seeks that I've seen before include "Goes in pursuit" , "Looks for" , "Hunts" .)