Help Plse

[kamanu15]

behind today - trying to finish yesterdays!!

8DFollow an estate, maybe,too closely (8)

10A Excellent exercise in odd parts of this island capital (6)

18D Host key in exchanges about liberal ex president (8)

31A Constant companion aboard big ship is one to settle things (8)

thanks in advance 

[MargoTester]

8 tailgate

[MargoTester]

Taipei

mcKinley

clincher

[Hazlinny]

31a Clincher

[Lie-in King]

10a Taipei - 'A1 (excellent) PE' (in) 'ThIs' (odd parts)
18d McKinley - 'MC' (host) + anag 'key in' (about) 'l(iberal)'
31a Clincher - 'c(onstant)' + 'C(ompanion of) H(onour)' (in) 'liner'