Hi Jolan
I see i'm 'late'
Another set of excellent clues. My solutions-
1) AN ANAGRAM - Wolfgang Amadeus Mozart is AN ANAGRAM of A Famous German Waltz God
2) OCTAL -Eight... Subtractive anagram (sporting)CLOSE FITTING BRA less (not) FIRST
BEING
3) HARBOUR - Entertain ...HOUR (time) keeping
ARB (anag-orderly) BAR
4) EMBARGO - Impediment ..EG (say) O (nothing)about MB (doctor)with AR (short-arm)
5) INVENTION - Design ...' Necessity is the
mother of invention'