The unclued lights (all but two of two words) are of a kind, listed in Chambers 2011. Elsewhere, ignore one accent.
 

Across

 
1    Race to leave car in protected area (12, two words)
10    Regular car rides to Irish peninsula (4)
12    Able to include one opposing support (10)
14    Everything’s satisfactory returning the acacia (3)
17    Pillar of Hercules unknown in Gaelic Scotland, on reflection (5)
18    Reversion to type in songbird, head to tail (7)
22    Phoenician goddess is with husband, 28 (6)
24    Bird in river and lough (5)
29    Diminutive confection without number, it may seem (5)
31...