As this is connected to the above (Appreciate this is more a WP thing - so no issue with it not being supported here) hope you don;t mind a follow up
Role editor above worked well....just one last need.
Trying to give Editor access to Menus but not the PageLines Tab
It appears that the only way to give Editors access to menus is to grant them Theme Edit privileges (as per below) ie edit_nav_menu privileges get changed as part of the Theme access change - but then you are back to leaving the whole PageLines tab open to Editors - which is what I was trying to avoid in the first place. ( a lot of this below)
Simply want to have Editor access to everything except the Theme and PageLines Tabs
been around the interweb a few times - can't find any other solutions or updates on the problem (seems fairly common). Any new insights here appreciated