the green light
permission
out of the blue
unexpectedly
keep an eye on
care
cost an arm and leg
expensive
lend a hand
help
have the blues
get depressed
black out
faint
red tape
bureaucracy
thick in the head
stupid
come to hand
arrive
pat on the back
recognition
leg it
run
see eye to eye
agree
let one's hair down
relax
at hand
nearby
flesh and blood
a relative
heart is in the mouth
be nervous