Times 24,149

[lampost]

16d Monitor elderly realtive getting in way,not moving. (8)

_ T _ G _ A _ _

27a Small mammal emerging from tree throws nuts (5,5)
_ _ _ E _ / S _ R _ W ( I think the last word is shrew)

5d More bleak land one refuses to give up (8)

W _ N _ R _ E _

15a Reliable chap following angry looking university type
(8) _ _ _ B _ I _ K ( It may be redbrick)

Thanks in advance

[gen2]

16d STAGNANT
monitor = TAG
elderly relative = NAN
way = ST (street)

[gen2]

27a = OTTER SHREW an anagram of 'tree throws'

[gen2]

Yes, REDBRICK for 15a

angry looking = RED
Reliable chap = BRICK

type of university = REDBRICK

[gen2]

5d looks like WINTRIER (more bleak)
but not certain of the wordplay yet.

[lampost]

Thanks for all your answers Gen2. I think I'll go with wintrier .
I can now get some sleep :-)

[mouselchu]

WIN = land (as in to land a prize)
TRIER is someone who refuses to give up

[lampost]

Thanks Mouselchu