Express Big Monday crossword

[naja46]

Help please !
19 down - older woman who acts as a girl's chaperone especially in Spain or Portugal D - - N - A
27across - valve controlling flow of liquid , especially fuel , to an engine - H - O - - L - ( this is probably so obvious but I can't get it ! )
Also , is 2 down ( pointed stake of wood for a fence ) a pole ? First I thought it was ' post ' but that doesn't fit with 9 across which is bollard .
Thanks !!!!!

[mrvertigo]

27a is throttle

[mike b]

duenna
throttle
pale?

[sarumite]

27a Throttle?

[FoxLee]

I think the woman is a Duenna and going by your letters not any technical knowledge, could the valve be a throttle?

[jan1956]

19d Duenna 27a Throttle, 2d Pale 9a Bulwark
cheers jan

[shaneystar2]

19 d Duenna
27A Throttle
2d Pale

[bridgenut]

Duenna
Throttle
don't take the Express so can't help with 2 down

[naja46]

Thanks to you all for the quick replies , I can now waste another stamp to try and win the � 1000 prize !!!!!

[teacher1]

I hope you haven't sent off your entry with with jan1956's suggestion for 9a - you were correct with bollard!
P.s. I hope you don't win because I've also sent off mine - Ha-ha!