Across
Arguably an excess of emotion when cataloguing bug? (8)
Stop and stand (5)
4d
Beautiful message by 22 down – for her character (4,7)
Roman copper coin, a rare fake featuring head of Balbinus (10)
I haven't cracked this one yet — but Fifteensquared have:
definition: a member of the Italian (i.e. Rome/"Roman") police force ("copper" = policeman). My Chambers has this listed as 'carabiniere', with CARABINERO as 'A member of the Spanish Civil Guard' anagram/"fake" of (coin a rare)*, around the head letter of B-[albinus] for the surface reading, Balbinus was an emperor of ancient Rome
16d
22 down character remains attached to English lord in senselessly joining club (6,8)
Game pie calls for dried fruit (8)
I haven't cracked this one yet — but Fifteensquared have:
anagram/"Game" of (pie calls)*
Comedic theatre where amusing hosts made merry (7)
I haven't cracked this one yet — but Fifteensquared have:
DRY="amusing" around/hosting anagram/"merry" of (made)* DRY as in dry humour
Foot carrying cut, very anxious (7)
On the rack – in italics? (8)
One that’s correct, though not entirely sharp (6)
LS’s extra dining room? (6,4)
I haven't cracked this one yet — but Fifteensquared have:
definition: having 'hollow legs' means being able to eat more than usual i.e. having extra room to fit more food into one's body LS is the word L-[EG]-S made HOLLOW, taking out its inner letters
Drunkard, sweating, dropping time and time again in London area (4)
Greenfly for example with love for green stuff (5)
I haven't cracked this one yet — but Fifteensquared have:
PEST="Greenfly for example" + O=zero="love"
Mesmerising guru, one accompanying Scandinavian lass (8)
I haven't cracked this one yet — but Fifteensquared have:
I="one" after/accompanying SVEN="Scandinavian" + GAL="lass"
Down
Part of fish, large on threshing shark (8)
I haven't cracked this one yet — but Fifteensquared have:
definition: a "shark" meaning a swindler FIN="Part of fish" + anagram/"threshing" of (large)*
Mark eyed in first year (4)
Seller of food that’s less appetising, we hear? (6)
See 10 Across
21d
22 down character personifies a despicable pleb loather (8,6)
For example, Fitzgerald’s behind sacrifice, 22 down character (5,5)
22 down’s Mr. Collins, say, cut from poem and caught (6)
I haven't cracked this one yet — but Fifteensquared have:
definition: Mr Collins in Jane Austen's Pride and Prejudice is a priest CLERI-[hew]=type of "poem", with 'hew'="cut" taken "from" it, plus C (caught, cricket abbreviation)
Book contains three-fifths of tales untold (10)
See 12 Across
In speech, 22 down character’s noble (8)
Bad day punctuating a creative work (7)
I haven't cracked this one yet — but Fifteensquared have:
D (day) inside A VERSE="a creative work [of poetry]"
See 5
Author, ‘X’ from Oz? (6)
Long narrative, a talk written up (4)
Type letters or click words in the clue