Rt31

[rozmercer]

5d - ???r?c?e? - rOLE FORbILL DURING RENTAL 

6D - ???L?N?D? - Marines plan a detour round coastal walkway

18a - ?E?E?F???A? - Remove if a sur-plice is lacking depth

17d - ???T?L? - Small marine mollusc to sink

20d - >I?D? - Scared by Westerrn American car racing 

Many thanks in advance

[elliemay1]

6D esplanade

[elliemay1]

^ in clue

[Lie-in King]

5d Character - 'ac(count)' (bill, in) 'charter' (rental)
6d "marin ES PLAN A DE tour..."
18a Superficial - anag 'if a surplice'
17d Scuttle - 's(mall) cuttle (mollusc)'
20d Windy - 'W(estern) Indy (car racing)'