31a - is the usual Lamb
1d - ''Bars'' = confectionary
5d - 'way' 2 letters inside ww1 slang for dead/useless (minus middle letter)
19d - 'airport' is def - remove 'chief'/1st letter of a 6 letter word 'in the bloody way' (lose the middle of what's left)
30d - 'Admire actor' is two words (4 & 6) then take the extra letter from last word
32d - 'opening' like a first night, perhaps? Insert 2 words for 'the writer renders' (1 & 2) after dropping the extra letter.
20d - 3 letters for 'one' and the extra comes out of the 'host'.
(not sure what you mean by 'fort', will have a think...).